the problem here is that Tyra is a moralist, nothing less and nothing more. she herself doesn't even know why she believes what's good is good and what's bad is bad and probably has to refer to the Bible and/or social norms to validate any sort of argument.
Sasha Grey (and i'm not speaking as fanboy here - i swear, i've never seen her work
) is, at 18, just so much more intelligent than she is. she's clear-headed and knows exactly what she's doing and why, and she also understands the context within which she's doing it.
this is a mindf*** for Tyra because Sasha's young, doesn't need anything, and looks good - meaning she should be in the 'upper echelons' of society, pursuing a more conventional means of making money like being a model or somebody's wife.
does she know that she actually wrote up her own contract in which she said she was willing to use her body as a commodity to enrich herself?
Superhead on the other hand deserves everything she gets