This notion that medical inventions are the benevolent gift of billionaires' ability to accumulate wealth is just wrong. What medical advances were made by the process you imagine in this comment? Maybe if brian johnson's blood magic from his son works I'll cede a single point here.
Science is a communal, collective effort, more evidently than anything else I can think of. To need to say that here of all places is really unfortunate
To try and act like taxing the rich is incompatible with medical advancement is just wrong. In the 50's and 60's we still made advancements and google the top marginal tax rate then. Do you think research would even slow down if rich people were capped at 999m? Seriously?