The majority of social change in history has been fueled by influential writers and thinkers, and also scientists. Political movements have all sort of needs:

The majority of social change in history has been fueled by influential writers and thinkers, and also scientists. Political movements have all sort of needs: people can contribute by writing software or running it, or cooking food for others, or setting up a wifi repeater, doing translations, organizing an event, mopping the floor.