How do Buddhists talk about forgiveness and turning the other cheek, for extreme wrong doing? The sorts of things that are not about being offended, not insults, but the exact opposite: are atrociously evil or wrong, so one would feel appalled if it had happened to anyone. On the one hand, one may be happy to let karma do its job, but -- on the other -- bodhisattvas must be impelled to save every sentient being.
Is the answer to seek material / earthly justice, and work to enlighten them, within the limits of Buddhist ethics?