Huh, you only have to play one game of Monopoly to understand how wealth inequality becomes a thing. And even more so if you enter the game after a few rounds have already been played.
There were two versions of the game originally, one with tax and the other without. The trick is to figure out a way of taxing that offsets the random and unfair aspects of the rules of the economy/game. However, I believe even the taxed version of the game wasn't very successful at it.