Why isn't this applied to income taxes first? Does the government deserve a percentage with no cap of whatever you make? Your government services don't get better for you the more you pay.
That is the hill you want to die on? The fact that at income levels greatly above the median income, taxes aren't capped?
You should look at it the other way, where ANY income or income equivalent, of any kind, should be taxed like income.
So when Bezos spends $5bn per year, that means he made $5bn per year (at least), so his tax statement should show him paying $2bn or whatever the top tax rate would imply.
There should be caps overall and under the caps there should be the option to choose between lump sum and royalties.
Nobody should be collecting unlimited revenue for a brilliant idea at the start and benefit from cheap or free scaling.
This entire model is ripping apart the fabric of modern society.
And yes, I known this is blasphemy on this website.