Wealthy people have always had many ways to hide their wealth. The problem was for the rest of people that they didn’t have as many ways, if they had at all. With cryptos this has changed: bitcoins+mixers+different wallets and alts like monero have opened a path for the average person to hide wealth from the state. If coins like monero get widespread governments will change the way they tax us, they will still collect tax but it will be different.
And it would get crazier and which is why any working class people at this stage should better buy in before these dudes start stepping in cause like you said, if they start getting waves of some of these coins like monero and so many of them still popping up, crypto world is going to get even more huge and then hardly are we going to see cryptocurrency ever going into extinction when some of the top players already have their money stashed in it.