I really don't see how billionaires can promote wealth redistribution by government and justify to themselves their own bank accounts. How do they sleep at night?
I don't know either. I think when they get to this level of wealth they believe they exist on a different plane. We have day to day struggles, and financial woes from time to time, so we need to worry about tomorrow. These guys have no worries like normal/average working people (blue, and white collar) do. Maslo's hierarchy of needs comes to mind. They start to be concerned with creating what they believe is a utopia, as that makes them feel important, and contributing to society.
If we give everyone a guaranteed "living income" we will have a society of lazy, unproductive,
unhappy people with no dignity, nor self worth.