I am repeating myself a lot saying this, but it's about respect. As manager you take an implied responsibility to be fair, nobody is going to tell you what to d

I am repeating myself a lot saying this, but it's about respect. As manager you take an implied responsibility to be fair, nobody is going to tell you what to do, it's on you. If you recognize unfairness you go ahead and take responsibility, take the losses and compensate the victim. Unfairness is not hard to detect. Just put yourself in the other person's shoes and see if you would like to be treated this way. Corporate and business ethics are well established with tons of case studies and guidelines, mostly common sense. If only there was somebody to read them.