"Our prime purpose in this life is to help others. And if you can't help them, at least don't hurt them."
—Dalai Lama XIV
Generosity is ultimately a hero's greatest virtue. It means putting others first and putting themselves last. They are so dedicated for others that they would sacrifice themselves just to let them live. Here's an index of generosity.
Contrast Selfishness Tropes
. Compare Responsibility Tropes
if selflessness is an obligation.