Two quotes from an interview with Marshall Ganz:

Grassroots organizing is about building power

And:

Is living your life in an individually responsible way enough to bring about the kind of change that you would hope for? I think the answer is no. It takes collective action. It takes mastering the tools of power, because there are very powerful institutions committed to making your preferred way of life impossible.

There's a bad truism among certain activists that education is the key. The key to what? Like all truisms the idea is incomplete. Decades of valuing education over action have left social movements educated and impotent. Thinking about power is more important than thinking about education -- spreading information is only important if people will do something with that information. We've figured out how to spread the information, but people aren't doing anything with it.