It can be used to do anything, but for some reason you want it to do crypto.
There's no fundamental law that says a technology must be abused, that's human choice.
BTW another choice is Bitcoin choosing to stay with extremely wasteful proof of work consensus mechanism, when proof of stake by all indications seems to work too. Again that's not something fundamentally flawed with crypto, that's people making greedy decisions because they're balls deep invested in it.
I find it extremely disappointing how even the HN crowd struggle to distinguish ubiquitous human greed from the problem crypto solves and its potential uses.
Maybe my hope regarding HN being one of the last places for civilised and nuanced discussion is misplaced, and it sure seems to be changing in recent years.