Look, I was an econ major too, and I get how "the market" is supposed to regulate wages. But obviously those $1m-base-salary-plus-bonus compensation packages did not, in fact, attract the "best and brightest," because those guys ran their firm straight into the ground. As in most areas of economic life, I think classical economic theory actually has very little to do with what's really going on.
In the last 10-15 years, we've seen a dramatic inflation in the size of executive compensation packages relative to average salaries. Have executives just gotten a lot smarter in that time? I doubt it. I think executive pay, particularly in banking, is essentially a market bubble that, well, just burst. Everyone's already talking about how the bulge-bracket Wall Street investment firm model is dead, or at least well on its way. Firms that earlier demanded the credentials and experience of someone who would've expected that $1m package are going to start widening the net. That's what these banks (who, again, would not be in business right now if Uncle Sam hadn't propped them up) are going to have to do. Letting the $250k guy in the door to run things will (clearly) scandalize a lot of people who have become convinced that anyone capable of that work is "worth" four times as much.
But $250k guys are clearly a lot easier to find and I'm sure that most of them can do the work just as well. Just ask the graduating MBA class of 2009 - I'm sure many of them would leap at the chance to even get in the door. Just wait and see - the sky will not fall.