Well, it's all about the upside I'd guess.
One I-banking recruiter told me, if I could stick it out in I-banking through the first few years, then the average comp package after the first 5 yrs or so was easily over 500k and in good years might approach 1M. Last year CSFB guaranteed 1st yr associates a min of 200k (that's the level you hire in at post-MBA).
Of course, during the tech implosion, bankers were getting laid off left and right, so higher risks should get higher rewards, right? Basically, just like in medicine there are those that go for the big bucks (I-banking/Management Consulting) and those that go for the little bucks (non-profit/etc.) The spread is just bigger. For a reference point, here is Stanford's report for 2003 (a recession year). they had a range of 42k-175k for base salaries with a median of 100k base and 35k bonus/other comp. Very few, if any, of these were sales jobs.
http://www.gsb.stanford.edu/cmc/reports/report03.html
As to U of C, hard to argue with learning the Fama-French model directly from Fama, having a tradition of more Nobel prize laureates than any other business school. (Disclaimer: I have never attended U of C, and am in no way affiliated with them, merely have great respect for what their faculty has accomplished.)