"market cap" is a very bad representation of the overall value which is impossible to actually estimate. try selling 600 million worth of btc and see how that cap changes.
It's only crypto that uses the term "market cap" to mean "outstanding crypto-tokens * price". That isn't what the term means in conventional finance. It's normally applied to shares.
You can't compare money and market cap directly. Millions of dollars can move the market cap by billions. It's because the books on exchanges are relatively thin.
