Crime. Why do most people steal? Because they want something that they can't afford. What does Bitcoin do to costs? It makes things cheaper.

It forces people to work and give effort if they want to make a living instead of living off of other people (Medicaid, food stamps, etc), thereby making society more productive and efficient overall.

Reduces all forms of red tape by minimizing or eliminating government. Great for companies and great for people building for themselves.

If a government exists at all, it makes that government more efficient because it actually has to provide services that people want for it to continue existing.

It liberates those that would have been imprisoned otherwise for things that did not harm another person, their property, or their rights.

It may increase charity as those who are most willing to give typically can afford to lose what they give.

It rewards those that create and give real value instead of potentially being subsidized.