Comment by kibwen

The self-balancing mechanism of markets requires "skin in the game", which is to say, there must be incentive for individual actors to make wise decisions backed by the risk of loss. However, as wealth accumulates, the marginal value of a dollar decreases. Beyond a certain point of wealth accumulation, losing money is no longer a punishment, which means wise decisions are no longer systematically incentivized. This gives individual actors unilateral power to keep markets irrational for longer than wise actors can remain solvent, creating market failure.