Crypto does have all those benefits, but without wide enough adoption, there's genuinely nothing valuable about it. Just like real money. It is immune to a certain kind of corruption (manipulating the money supply) but very weak to another kind (making your own worthless currency to scam people with).

Even if we got society to go full crypto acceptance, governments would do all they can to control it. Manipulating the money supply is how you get every politician's favorite thing ever; an economy fueled through the debt of future generations.

The fediverse has the same conceptual benefits and the same problem of needing large groups of people to grow, but there is a big difference: having spaces for online communication not controlled by single actors is valuable in and of itself. Whether enough people find it valuable enough to participate is up to them, but the concept, at least, is incredibly appealing especially at this current moment.