I've been around enough upper class people to know. My cousin is a lawyer and I once posted on a law forum. Many posters were making at least 100k, and with the average BigLaw salary being 160k, some guys attested to being associates making over 200k. At times posters said they made over 500k (i.e. partners). I've even lurked on Wall Street forums too (not as moneyed per general but at the top there's guys who make more than lawyers; the point is that most everyone posts on those forums makes good money in comparison to anyone on the coli). Anyway, there is never any talks of dating escorts, whores or porn stars. The law forum is replete aspie/geeky conversations about school prestige, marks, grades and salary. When it comes to women, the goal is finding a successful woman that was suitably attractive. If a guy found an actual pretty girl that was a college graduate, most of the posters acted like that man had discovered a gold chest. The issue with higher education is that the higher one goes and the nerdier the subject of interest (i.e. math, physics, even law) the less physically attractive the women. At my school most female graduate students are average too.
But upper class people tend to marry people in that class, which is further subdivided by progression, education, etc. This is because 1) a lawyer making 250k+ a year can hardly converse with a sex workers on terms both understand let alone date her and 2) those they can communicate with, are good and responsible partners, etc are all highly educated like they are. And since almost all upper class people are highly educated (hence their wealth and status), that means very few are out in the streets with prostitutes like Lisa Ann.
If anyone wants to know what kind of women rich people date, go check the New York Times marriage catalogues. There is no such thing as a rich dude fukking with whores and sluts out in the open. Even the rich dudes who do fck around have a real wife and kids