> Communal living houses (“co-ops”) encouraged casual nudity, while fraternities threw a raucous annual “Greek Week”

If the access to professional social network requires participation in the above, then I see why people see issue with that. In an ideal world, your professional future would not be dependent on your willingness to walk around naked or your enjoyment of raucous party. (Neither should damage your future, but should not be the key to access either.)

And in particular, I find it completely inconsistent with idea of meritocracy.