The fact is, pretty privilege can cause you to lose out on a lot of emotional and mental development you'd get from... well, having to actually develop a complex personality or make friends based on it. It's essentially optional for them.
MIND YOU I am not trying to stereotype everyone whom hit a genetic lottery win. I've met plenty of mean, shallow people who'd be lucky to be considered a 3. I've also met my fair share of physically pretty people who aren't satisfied with their fleeting physical appearance and thus develop impressive empathy and intellect.
Just... yeah. "Landmine". I definitely get it. It is a good idea to be careful.
Thankfully on the internet we can all be anime girls if we want, rendering the point moot