This is never brought up with any kind of seriousness, and the lack of discussion baffles me. I don't understand how we talk about salaries when the top 5% usually do not draw a major salary. They live off capital gains from selling stocks and bonds. It just seems to be a 3rd rail that is untouchable, neither here nor in conservative or liberal blogosphere. It's always about that progressive 1040 taxation.
That, or perhaps, instituting a 3% transaction tax for every damn unit of debt or equity sold. Whether its a broker or bot, tax it.
But, of course, most of the ruling class wants to talk about "skin in the game" and advocating regressive sales or property tax.