How MBA graduates view their salaries

"When a group of MBAs were asked whether they'd rather make $100,000 when everyone around them made $120,000, or make $90,000 when everyone around them made $70,000, a majority opted for the lesser salary if everyone at the company knew about the discrepancy, Schwarz said. But if the salary discrepancies were kept confidential, about half said they'd opt for the $100,000 job."  -CNN/Money article

I wonder what schools these alledged MBAs graduated from.  I'd much prefer the $100,000 salary, even if everyone else around me makes 20% more and everyone is aware of it. This goes to confirm my view that a lot of MBA grads (and current students) have big egos.