When you do something to someone, are you righteous in doing it? Would you be alright accepting the consequence or reward that results from it. Make no mistake, I am not saying you would be righteous in doing it to someone because you would have never done the action that results in the consequence. If you had no choice but to do the sin or other action would you be alright still accepting the consequence. Let he who has no sin cast the first stone, forgive us our trespasses and we forgive those who trespass against us, and do unto others as you would do unto yourself. All three mean the same thing. Someone has to be on the other side of our actions, and there is a special place in hell for unrighteous people.