Alright then, can you do math?

Valve gets a 30% cut, take a game, reduce that cut to 10% and figure out the price. Price stays the same? Alright, that just means more money going to the devs, which are the people like you and me, instead of Gabe, which is a billionaire.

Apply that in all sectors and we end up richer, billionaires end up poorer. The 1% would finally stop owning 63% of all wealth… But I guess you would rather defend their right to make as much profit as they want while you can only afford a 10$ game every six months.