My brother-in-law set aside his life as a successful entrepreneur to serve the people and the country he loves. Make sure that whatever you are fighting for is inspired by love. It is the only drive that is inexhaustible and results in a truly fulfilling life.
Anger, resentment and revenge are motivators that burn hot. But they also burn out fast and take you with them. But when love is acted on, it is refueled by the responses of others and your own internal response. As far as motivators go, it is the only renewable resource.