I never did understand this theory...
I have large breasts, so outside of anything corrective, I'd personally not consider it. I don't like the look or feel of them, generally speaking since they're all different.
I have a large scar on one of mine from an operation years ago, and yes I was a bit paranoid about it for a while, chose my tops carefully to ensure it couldn't be seen, but now it as much a part of me as the rest of my breasts are. There's a high chance that I'll end up with more scars in the future, and I expect the experience will be much the same, though I'd hope for a little less paranoia since I've managed to deal with it once already.
Does me having the ability to be happy with what I've got mean that I should expect all others to have the same ability? Not at all.
Do I feel they are somehow cheating, since I've spent 28 years growing mine, and they've popped into a clinic for a few hours and come out with something equal or greater in size? No more so that I'm cheating when I put on a little makeup or a nicer pair of earrings when I'm feeling a bit crappy.
Fact of the matter is that most of us are adult enough to know that there are people out there, men and women, who like all sizes, and there is no particular size that gives someone an advantage over someone else.
We are not a pair of breasts, and I think I can safely speak for all the women here when I say:
The type of man who would consider us on breasts alone, isn't the type of man we'd be with in the first place, so it really is a non-issue from the start.
I wish women didn't feel the need to get boob jobs (outside of corrective issues) I wish they didn't feel the need for makeup, revealing or tight clothing, jewellery, heels, hair extensions or waxing... I am however as guilty as the next person, and am never happier than wearing a gorgeous pair of heels (I prefer boots, but they aren't always appropriate) under a long black skirt that hides said heels, a corset that shows off my breasts, with as many piercings as I can jam back through the now mostly closed holes and full makeup.
Very few of us are entirely happy with how we are, most of us know it shouldn't be the case, and the majority of us know that we're hypocrites, so withhold judgement of those who deal with their insecurities differently to how we deal with ours.