Blockchain's can be used in all manner of ways the at least suppress corruption. Think of it in the case of voting. There's obviously a real agenda amongst some to control or manipulate voting procedures. If votes were transparent, private, immutable and automatically allotted we'd have a far more trustworthy system of voting. That's just one of the simple ways DLT's can be used for good.

Granted, separating state and currency would be a huge victory for freedom, but if we start with more manageable items it's only a matter of time before we move on to bigger things.