To this, I would humbly add a bit more specificity: the benefit for the wealthy is not so much in "number goes up" or "number eat dirt" per se, it's in VOLATILITY. Buy in a crash, sell just before the next crash, rinse, repeat. This allows you to extract the value others have built using liquidity.
Taleb makes this point forcefully in "Black Swan". Steady, predictable prosperity is bad for the rich. Their interests are fundamentally misaligned with everybody else's.
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