Do they? If there were no magic 10x, 100x, and 1000x returns in crypto and it only solved the centralization problem, would even 1 out of 100 current crypto proponents still care about it?
I'd argue it's the risk of volatility which both drives high returns and suppresses these uses, so a stabilization of market prices would eventually see growth in these use-cases as their potential audience puts proportionally less weight on the risk-factor.
One might not see 1 out of 100 current investors remain, but do think that these audiences could grow to equal or surpass such a small segment of the current interest.
Right now the belief of most bitcoin/crypto adopters is that it’s a way to get rich quick
Like most macroeconomic forces, it matters more what the majority believe to be true than what the vision is for something, whether it’s true or not.