There is a board game called "Who's the Boss". Simulating business negotiations.
You will find that the more closed the information is, the greater the wealth gap. The more information circulates, the smaller the wealth gap. (By recording every transaction and everyone's wealth, and regularly reporting information to everyone, I broke the conventional process of this game, avoiding the previous polarized outcome)
In the game, everyone will fight for their own maximum benefit. If everyone's assets are visible to each other, a better balance can be formed, and players who contribute more can receive more benefits.
When wealth is opaque, the clever ones can obtain more benefits from others without being discovered.