There is a popular idea that professional maturity means learning how to separate work from life. Set boundaries. Switch off. Protect your time.
In many contexts, that advice is healthy and necessary. But there is a level of seniority for which this clean separation becomes a myth.
When you are accountable not just for tasks but for outcomes, not just for execution but for direction, work does not end when the laptop closes.
Decisions linger.
Trade-offs replay in your head.
Second and third-order consequences unfold long after the meeting ends.
I have found that some of the heaviest decisions do not feel heavy in the room. They feel heavy later, in quiet reflection. However, this is not dysfunction, it is the structural reality of possessing ‘agency’.
Agency means having the ability to shape outcomes, as well as the obligation to absorb their consequences. This is what responsibility costs at senior levels.
When responsibility shifts from tasks to outcomes
Early in your career, the unit of work is clear. You are given a problem, you solve it, you move on. The scope is defined, and the accountability is bounded. Performance is largely a function of effort and competence.
As responsibility grows, the unit of work changes. You are no longer solving contained problems. You are choosing which problems matter. You are deciding what not to pursue. You are allocating scarce resources across competing priorities, knowing that each decision creates downstream effects you cannot fully control or predict.
The shift from task ownership to outcome ownership often happens subtly over time, but it represents a profound shift. It changes how you think, how you carry stress, and how you relate to uncertainty. There are moments when a decision seems analytically correct yet still sits with you because you understand who it affects. That awareness is new. The consequences of decisions now extend beyond your own performance. They affect teams, careers, capital allocation, and strategic direction. That weight does not disappear at 5 p.m.
Responsibility expands the time horizon of your mind.
The invisible load of leadership
Much of leadership’s cost is invisible. It is not the hours, though those can be long. It is the cognitive and emotional load.
There are competing narratives of how the future will unfold and yet you must place a bet. There are mountains of data, amongst plenty of information gaps, and yet you must figure out what it all means. Clear judgement and insight are rare. Any meaningful decision will disappoint or infuriate someone. As seniority increases, honest feedback from colleagues and subordinates becomes scarcer. People are more careful. They calibrate their words. The room feels more filtered.
This creates a particular kind of solitude. Not dramatic isolation, but the quiet awareness that fewer people see the full picture you are holding. I have noticed that the higher the accountability, the fewer places there are to think out loud without consequence. Conversations become more measured. Opinions carry more weight. Silence carries more meaning.
From the outside, leadership can look like authority. From the inside, it often feels like a heavy burden of responsibility.
The more agency you have, the fewer places there are to defer.
Agency requires constant engagement
There can be a temptation to interpret constant mental engagement as a warning sign. Sometimes it is. Chronic exhaustion and unrelenting stress can be real and serious. But not all lingering thought is a sign of pathology. Sometimes it is simply symptom of ownership, of being the decider.
When you choose to lead, you choose to care about outcomes that extend beyond yourself. You choose to remain mentally connected to decisions whose impact unfolds over time. You accept that certain calls cannot be cleanly reversed and that the cost of error grows with scale. I have come to see that the discomfort is often proportional to the significance of the decision. The more it matters, the harder it is to switch off.
There is a parallel with parenthood. Responsibility does not switch off. Even in moments of rest, part of your awareness remains oriented toward what you are responsible for. That vigilance is not always comfortable, but it is intrinsic to the role.
Agency expands your time perspective and sense of consequence.
Managing the cost without denying it
The answer is not to romanticize the weight of responsibility, nor to deny it. It is to manage it deliberately.
Physical routines matter more than people like to admit. Exercise is not only about fitness, it is a cognitive reset. Some of my clearest thinking has happened mid-run or mid-shower, not mid-meeting.
Structured thinking habits matter as well. Writing clarifies. Explicitly documenting assumptions reduces mental churn. Defining decision criteria in advance prevents endless re-litigation.
Equally important is accepting that not all uncertainty can be resolved. Leaders who attempt to eliminate ambiguity end up exhausting themselves. Those who learn to operate within it by distinguishing between reversible and irreversible decisions and by pacing their cognitive investment tend to sustain higher performance in the long run.
This is not about work-life balance in the simplistic sense. It is about sustainability. Agency without sustainability becomes chronic stress and eventual burnout. Agency with discipline becomes resilience and career leverage.
Choosing agency knowingly
Leadership is optional. Responsibility at scale is optional. Many talented people deliberately choose paths that offer impact without carrying ultimate accountability. That choice deserves respect.
For those who choose agency, the cost should not come as a surprise. The mental carryover, the solitude of final decisions, the awareness of consequence; these are not anomalies. They are features of the role.
The price of agency is that your mind rarely goes fully offline. The reward is that your decisions matter.
Agency is not free. But for some of us, it is worth the cost.
Jason Oh leads strategy and partnerships at Vanguard Canada. His career has spanned strategy consulting and corporate strategy, advising leading financial institutions on growth, transformation, and execution of strategic priorities.
Image: DALL-E
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