I know an escort from Uruguay who now is worth 2,000,000 in real estate in his country! He's also well-educated but does not have a degree because he's a college drop out.
I'm not sure if that's a common perception as in something most believe to be true. Is hard to make a generalization about why some guys decide to escort while others would never do such a thing.
I have eyewitness in my years as a client that guys with brains once they decide to escort make a career out of it, while folks who do it because they have NO other choice because they have no education, they can't keep a job or have a criminal record sooner or later miss appointments, can't handle money, etc.