You answered your own question 
Cosmetic surgery is like the outhouse of the medical house: they’re technically part of the property, but it kind of stinks. It’s on the fringe of what’s acceptable from a medical standpoint. In theory, it shouldn’t be allowed to exist. My personal theory is that it does and it’s legal because rich people want it, and because influencial surgeons make a metric fuckton of money on the side with it.
That’s why I asked a while ago whether cosmetic surgeons were approachable for our kinds of non-essential procedures because they’re already walking the fine line.