There’s an LDS hymn called, “Have I done any good in the world today?” It includes a line that implies that only when people are actively doing good can they help others to live. No set amount of good is required, but doing good is a duty. John Stewart Mill wrote something to the effect that when the good do nothing the bad will thrive. That is in the same spirit. But some people go too far. The argument has been made that if a person doesn’t stand against all injustice then he doesn’t stand for justice at all. This is virtue taken to such an extreme that it has become vice. I can do some good any day and I should do some good every day, but I can’t do all good and all the good every hour of every day. I will do something to help others to live but I cannot face every injustice with my full force of will at all times. It is just not in me.