[workallday21]

I think it won't be long until this tech will be used by banks because it seems to work rather well.

As for a benefit, if you consider crypto as a mode of protest alone it has value.

People are allowed to smoke and destroy their health (and of those nearby), people are allowed to gamble, people are allowed to buy to biggest truck that pollutes to no end. How is that legitimate and how does that benefit more to society?

It's a weak system one that works only when it has no competition.