Go to any country perhaps with the exception of Estonia and you will see that digitalization was supposed to change governments for the better. Instead they mostly have created very sporadic successes but a lot of failed implementation sometimes even making it worse. Yet there is no doubt that in the long run things are changing for the better.
The problem isn't the technology but the problems around legality and implementation and who it disrupts.
There is however plenty of usages for blockchain just off the top of my head.
Digital Pokemon cards, 2nd hand ebooks market, 2nd hand digital assets market, digital art certification, tracking of how money for NGO's are being spent and of course as a gold standard for important deals done between large organization and of course as a truly international wiretransfer system.
All these things will happen with new generations growing up and finding natural uses for them.