If they kept stats on who was an endowment/legacy admit and gave them a different colored diploma so people could filter them out when assessing things like grades and graduation rate and they didn't effect the curve I think there would be less criticism of the process.
I dont see why they would get different diplomas provided they complete the same coursework. If they are inferior, they should only help others on the curve.
I do think they would be more upfront about options for entry.
Not if they're given unearned grades
I forget the exact stat, but I think the median GPA there is about an A-.
Apparently you've not been to MIT in a while - it offers degrees in business management, finance, plus 17 in arts, humanities, and social sciences, not to mention grad programs. MIT admits more than its fair share of fruit-cakes with money: