If a person really means it, he gets a reward far more valuable than anything on earth.
If he's just shining us on, then nothing can help them.
For ourselves, use forgiveness. But true forgiveness is letting go and never again needing to revisit that past perception of hurt. It helps to take 100% responsibility for your part in creating our current reality. That's right... 100%! That part of you which understands will know what I mean. The ego doesn't know anything.