I would say fiat was an wicked invention created by greedy men. King Jesus used it as a stepping stone to freedom money

I believe the reign of Christ has been a series of instances of Him "giving gifts to men" each of which has made it progressively more difficult for men to oppress other men. Before the printing press, it was inconvenience that the power of the Catholic Church (nothing against Catholics, just against the wicked men who ruled at that time) would ever allow ideas to spread that could challenge their ideas.

So many evil practices will become impossible to continue when the US isn't extracting labor from the world. It will become very difficult for giant, centralized regimes to oppress their people when they have to ask their people for the taxes to rule. New evils will arise, but I see the next fifty years as a great reckoning for many evil systems.

In five hundred years, I think people will talk about these changes as things wrought by the invention of the internet. They will get the abbreviated version of history and will just know that we got the internet and Internet money soon after. The average person won't consider the tension we experience of living in an age where it seems like the bad guys might win and the internet might be largely just a tool of oppression.