Those few would, however, have proportionally much more power and are not going to use that power to threaten the structures which made them their money. I don'

Those few would, however, have proportionally much more power and are not going to use that power to threaten the structures which made them their money. I don't think it's by any measure a good idea to have a few billionaires set the course of society; deciding what gets invented and produced, what kinds of ventures get supported, what programs enabled. That is just autocracy with extra steps.