For you which could be the most important impact that bitcoin have made, will make or has been making to our society?
I think the biggest impact that bitcoin ever made is the decentralization. Bitcoin make the user avoid bank monopolization and government control, that mean the user have the freedom of using their money. I am really sure that the decentralization will make the people economy equal, becouse no more financial capital power that can destroy the smaller business. All people in the future will be rich.
I don't think so, income inequality will keep on existing as long there are differences on the job we can do successfully, but I agree that bitcoin could help, by reducing the size of that gap.