How does a billionaire have to associate with poor people? They can live in a complete bubble: house in the hills, driven by a chauffeur, private jets, private islands for holidays etc...?
The poor maids and servants, the poor chauffeur, the poor chef, etc.
Unless they’re living entirely by themselves, they will always be dependent on poor people.
The fact that people see that basically the singularity is happening but can't imagine that humanoid robots get good rapidly is why most people here are bad futurists.
You still have to find the kids to rape.
The people who cook for them, the people who clean for them, the ones who take care of their kids, the one who sell them stuff or serve them in restaurants...