Curious as to the source of that information, the salaries, graduating schools, and the fact that they're "quants"?
I'm not an MIT grad but do employ some and do know a lot of folks from a somewhat better tech school

An average salary of $200K with that background in that field actually sounds pretty far below market to me. If it was starting salaries, maybe, but a. I hope (but wouldn't be surprised) it's not recent grads staffing that division, and b. A good finance quant with 10 years experience (assuming 10 years is a reasonable median) makes a whole lot more than that pretty much anywhere.
Regardless of all that, their front line staff are almost universally morons who have to be the bottom of the barrel. I can't image you could disagree with that if you ever had to have a meaningful conversation with them?