What if they have and it's what they want? If you're a billionaire who already has everything this system can offer, you'd likely desire a system that can give you even more. A system that doesn't limit you in ways that this one does. You'd want to be a king. Even if it means waging war with other kings, it would enable a far more exhilarating life, full of possibilities that don't exist in a system where ordinary people have a say.
I haven't gotten there myself, but I like to think that if I was a billionaire I'd like to see as few ripples as possible in the system that's keeping track of my billions.