Well, I wouldn't say that plastic surgery is intended to make you look beautiful. It's intended to alter your looks in the way that you prefer. All that matters is that the person getting it done is happy with the result. Not some other random person who isn't them.
Also, beauty standards change a lot. Just look at how fashion changed from the middle ages through the Renaissance and after. You can tell what features were important by how garments were designed.
I'm not a fan of duck lips either, but I also don't have to get them.
You just take your shoes off at the door and put them back on when you leave.