Actually - anytime you say all or none - or always or never, you are probably over simplifying the issue.
Some girls feel a lot of pressure to change things about themselves and others don't. My ex wife had perfect a-cup breasts, even after the kids, but she was never content, possibly because all of her sisters had full c's or d's but more likely, as a stripper, there were so many fuckhead customers that insisted that she have larger boobs. Cultural pressure on women to look a particular way is extreme in our society and to deny that these same pressures apply in the sex industry is probably naive.
Personally I prefer natural beauty. Body mutilations such as fake tits, fake lips, fake asses, tattoos, piercings, brandings etc. do nothing for me. Hell, I even prefer girls that look nice without makeup.
That said, I also support one's right to do anything they wish with their own body - who the fuck am I to judge.