I think it’s more a sunk cost effect that most humans buy into. There’s no quick fix for a body like that, so it has to convince itself it’s fine. And others that look similar encourage this, because that by extension means they’re fine too. You see the same thing in cults- they cheer each other on and support fucked up shit, because otherwise they’d have to admit they’re wrong and that would mean admitting a huge chunk of their life has been wasted