Materialism and humanitarianism are often at odds in hip hop. Actavis and activism do not always go hand-in-hand. But hip hop is a world unto itself, and countless rappers have used their platform to fight for the underprivileged.

This article interprets "social activism" broadly -- it includes artists who have uplifted marginalized groups, generally affect positive change in the world, and attack social injustice. Unfortunately, it is not always so easy to attack social injustice at its root. But we salute these 10 rappers who have served their community and inspired a new generation of do-gooders.