<p>There's two separate arguments that revolve around time. You've addressed one of them, I believe incorrectly.</p>
<p>The first and more important argument is that because IB, HS teachers, and automechanics, etc. earn more lifetime income is because they receive it earlier in their lives, when it's worth more. This argument is not what you're discussing.</p>
<p>The second and less important argument is that doctors work more hours than lawyers and other professions, so an equivalent compensation is actually much less per-hour. This is the argument you disagree with.</p>
<p>First, I don't believe I made any arguments about investment bankers. My comment was directed at people in Corporate Finance, which I believe has more to do with oversight of corporate budgets and investments on behalf of a firm.</p>
<p>Second, even those pursuing investment banking are not pursuing careers in IB. They spend a couple years there, go to business school, then exit as highly-paid and light-hours management.</p>
<p>Third, I believe you're using a small subset of attorneys -- those who work directly for a firm doing work on behalf of a corporation -- to attempt to argue that the broader field works very long hours. Partners at these firms, in-house attorneys, and private practice attorneys all work much fewer hours than these.</p>
<p>In other words, you're using very young professionals in business and law to compare against more established physicians, who (obviously) work fewer hours. The proper comparison would be more parallel than that. And while I think it could in some situations be close, medical residents almost always max out their eighty hours a week. I don't think most young lawyers can claim that. IB, sure, I'll concede -- but for a much shorter and earlier period of time in their lives.</p>