This is where the phylosphy of characters like spiderman or superman comes, they have power and this gives them a responsability. with this power they can help lives, save people, so they will do it, ALWAYS, no matter what, even if they have to sacrifice their own personal life, even if they have to leave behind friends or family, if they don't, they will feel guilty, undeserving of their strength. The same could be applied with real life, there are people that could have done something, that had the power to help someone in front of them, or to even save someone. Some people would risk their lives to save another, because they would feel guitly if they didnt take action, knowing that they could have saved someone, helped someone, but that they didnt, it makes them feel miserable. If you ever plan to write an actual righteous character, never forget this.