[stopping]

If the top 10% of people suddenly had their wealth double overnight, it would have absolutely disastrous effects for the lower 90% of people. Prices for scarce goods (e.g. housing) would increase dramatically. The price increase dampens the overall demand for housing since a large fraction of the 90% are now priced out. The wealthy homeowners have an incentive to maintain that scarcity, and freely use their resources to preserve the status quo by preventing desperately-needed housing from being built.

Those with wealth will tend to steer the economic system more towards their own interests in a runaway feedback loop, often in ways which create no overall net welfare for society.