Rather the point is, there are two standards not one. Perhaps in your ideal world there should be only one grade. Context and money changes things. Ted Kennedy comes to mind. Few can leave the scene of a crime with a young women drowning because of your mistake of being drunk and behind the wheel and then have a career in congress. Did Ted Kennedy go to his grave knowing he killed that women and left her to save his political skin? Of course. He should have gone to prison for what he did. It is done all the time and doping is dominant in sports and superstars do get a pass. Will talent, influence, money and yes contribution always get a free pass? More times than not. Because at the end of the day, guilt is generally considered with context and not absolutes.