Perhaps there are currently more peasants than they require? Was Ritchie Rich just waiting until AI drones became advanced enough to serve them properly?

My limited experience with wealthy folk (prob not even the top 15%) is that they like to feel superior by comparison. Some may be intelligent. Most are educated well even if they lack any aptitude.

My best guess is that they lack wisdom or any semblance of awareness that an aristocracy is stagnant. The things that live on our planet have had to struggle and adapt to survive. At some (small and meek) level, they fuel the forces that would oppose them.

It's not actually fun stuff. I was joshing. I doubt we get to create the United Federation of Planets in the future. I would be ecstatic if that statement was proven wrong.