There's two ways of looking at it. One is with a sense of personal accountability. "If you use Facebook, then the first thing you should do is stop." A humorous example can be found here: http://observer.com/2011/12/in-which-eben-moglen-like-legit-...

Since you've done that, you have several options to change other people. You can evangelize. You can promote or design alternatives. GNU Social has been extremely successful. Running an instance would be an easy and educational way to help. You could write libraries for the newly specified social web protocols.

The important thing to remember is that it's okay to fail. It's better to be a hypocrite than apathetic.

The people I know who still use Facebook are doing it less and less.

What is holding them back are the friends who are not using any other social media.