Cryptocurrency does provide opportunities for breaking financial control out of the hands of the govt/central banks/big financial firms - if they're taken. In practice we just have the old world finance industries being rebuilt in the crypto world. Heck, the classical financial world's fondness for trading in abstractions of abstractions of abstractions is being taken to extremes with crypto honestly - allowing those with already deep pockets to just make them deeper.
The problem is human nature, really. Algorithms won't solve that. Force won't solve it either, we've tried that so many times. Fear doesn't change it. The most success we've had is trying to harness and direct it but even that hasn't had great results, it's been okay at best.
Crypto isn't going to make everyone who has 1 penny into $1. If it was that easy, then everyone would have $1, and inflation would adjust accordingly, so your pint of milk would go from .50 (say) to $50. If everyone is rich, nobody is. That being said, it is possible to make a huge return on Crypto, but it's like gambling - and it's only a small percentage of the 1% of coins/tokens which don't fail which do that for people who bought in at the very outset.