I think it's really problematic, and not just from a feminist perspective, but from the POV of how as a society we think about appearance. It affects women especially though.
Like a pp said, I think there will be always be some sense of beauty and attraction that humans pay attention to. It's inevitable, and some people will always struggle with feeling unattractive.
But what people seem not to notice is that this stays pretty standard no matter what kinds of interventions, surgical or otherwise, we involve. If a society adopts nose jobs, or botox, or hair dye, or whatever, al it does really is up the effort and level of "beauty" required for all. Not that botox and such is common in some areas, more and more women see the look it creates as normal, and feel the need to get it.
So in the end I think it is lose lose. Probably it is unrealistic to try and tell people not to do anything for beauty, and it's often a sign of depression when people are totally uninterested in how they look, but actually getting a dangerous surgery seems to take the race to the bottom to a new level. I think it's a line we shouldn't cross.
Obviously there will be a need to draw a line between what is cosmetic and what is corrective, but I think that is doable. I think it's actually unethical for doctors to perform cosmetic procedures, it's putting people's health at risk without a medical need, so outside their proper role.