Have you ever thought we would just like them? That perhaps we want a more curvatious figure than we have right now? I don't think it's anyone's place but the woman in question as to why she gets a boob job. If you like small boobies, that's great. Would you want to be with a woman who's unhappy she has small boobs just because you like them that way?
Unless you really think of a woman as nothing more than a breathing, three holed cum receiving unit...and I mean in real life, not on this board...then I bet the answer is no.