The payola to the fatcats might be justified (falsely or truly) as “investment in business.” Which is supposed to end up benefiting many. Doesn’t necessarily make it right but could make it understandable why it is considered more acceptable.
In most cases, if you took the high pay away from the "fatcats", and gave it to the average workers, it wouldn't make a noticeable difference in pay.
All it is is a wedge issue to divide the haves and have nots.
In the end the have nots only want to take away from the haves, even if it doesn't help them.