Honestly at this point I will take what I can get. I would definitely pay for something like this. A way for UMG widgets to allow transactions involving crypto currency between multiple players would be pretty interesting. Either through blueprints or C++.
I cant shake the feeling that this is one of those ideas that might sound kind of dumb but in practice is just revolutionary. I am actually pretty sure that someone with a better understanding of the tech could have a far more slick way to create such a system.