It's a well-researched fact that women are reluctant to "date down" (in terms of social standing, education, professional achievement and wealth), whereas men don't care - they (we) are mostly interested in how attractive a woman is.
Also: define "attractive".
I haven't paid much attention to it personally.
Sorry, by "attractive" I meant "physically attractive".
Anecdata I know but I've seen lots of good looking girls get minimum attention because of their shyness or insecurity. I've seen the opposite of this tons of times.
The point is, if a man finds a girl physically attractive, it doesn't matter to him whether she's a waitress or a CEO. On the other hand, women are more likely to find the CEO more attractive than a waiter.