You are oversimplifying the situation here since we are talking about a web of psychology that is well refined by now that often uses blackmail to keep people silent. The guilt and fear is largely what causes people to continue what they doing - and, yes, combined with the 'wealth' they have access to. It is partially true that some of them keep going because they want the wealth, that is obvious - however, it is not so obvious how they are threatened to stay in that position and it definitely isn't obvious to anyone outside of those circles exactly what is going on when it comes to threats, abuse and exploitation.
Your position appears to be one of blaming possible victims and yet you have no evidence except that the woman here enjoyed the parties. Well, duh - as you say - yes, I'm sure she enjoyed the parties. She also explained that as she learned more about how it all operates, she left - without ever having been compromised.
Honestly, if you are going to try to present a counter narrative here, the very least you can do is actually bother to review the short amount of evidence.