I love this Desmond Tutu quote:

Do your little bit of good where you are; it's those little bits of good put together that overwhelm the world.

It doesn't matter what others think or do or say, just do it. There's a sense of what I may call 'utter rightness' in 'little bits of good' that is universal, that everyone recognizes, even if/when they fight against, ignore or pretend not to notice them.