One social change role is direct service, or helper: the people who addess a social problem in a very direct way. Examples are Habitat for Humanity volunteers who build houses and envionmentalists who clean up streams. Another change role is the advocate, who seeks a better policy from those in authority: lawyers who represent immigrants threatened with expulsion, lobbyists who seek additional funding for schools in low-income areas. The change role of organizer takes on many tasks having to do wìth getting people together, whether to create a new campaign or to turn out tens of thousands to an action or to hold a fundraising event with a celebrity. The role of rebel focuses on disruption: Susan B. Anthony voting illegally in the 1876 presidential election, Martin Luther King Jr. refusing President Lyndon B. Johnson's order to stop the Selma March for voting rights, César Chávez leading the California farmworkers in their strike against growers and wine makers. When we start a nonviolent direct action campaign, it is usually rebels who most of all report for duty.

— How We Win by George Lakey (Page 11)