Most of that wealth was manufactured in the crypto bubble, not actual money people worked for and put into crypto, just early stage ponzi investors that kept rolling their investment. The wealth, while apparently substantial, was never actually there, I think most understand that the mirage would have collapsed anyway if most investors would have attempted to exit earlier.
Basically, any early holder of Bitcoin today, while losing 70% or so of the peak value, is still a bazzillion basis points in the black, because they can get real dollars for what is essentially an early and rudimentary shitcoin with arcane limits, slow transaction times and extreme volatility, which is only used in the real world for speculation, money laundry and trading other shitcoins. Pretty ironic that's the "gold standard" of the crypto world, followed by an entire brown spectrum of shittier and scammier tokens.