The question articles like this never get around to asking is: What would "fair" look like?
The data is never going to be flat. That would mean the top earners and the lowest earners had identical incomes. Call that what you want but that's not a free economy.
The data is never going to be flat. That would mean the top earners and the lowest earners had identical incomes. Call that what you want but that's not a free economy.