Recently Reading: How to Change the World
An inspiring book, How to Change the World: Social Entrepreneurs and the Power of New Ideas, by David Bornstein, discusses social entrepreneurs, people who undertake relatively large endeavors in order to make a difference. While he doesn't fully answer whether or how this kind of social change is possible, the author provides plenty of great examples from recent history, as well as drawing lessons on the personality traits and activities that make some of these proponents successful.
I believe that in some ways WOW goes towards this type of activity, through our collaborative efforts to develop new worldviews, currently in the form of behavioral codes and narratives.