Along these same lines Rav Aharon Kotler zt'l explains that a person shouldn't do something wrong in front of himself because he is there so he is never really alone. He explains that we mostly do things inappropriate because we don't value ourselves. If we recognized the greatness that we each have many of the things we do we would stop. The same way we wouldn't do certain actions in front of important and highly respected people we shouldn't do it in front of ourselves.

Although it may be hard to look at ourselves as "special and honorable" I think it helps if a person reflects on his ancestry. Did you every consider the fact that your great grandparents were Abraham Avinu and Sarah Imenu? Is it really fitting for someone who is their grandchild to do such a thing?  What about your grandfather or father or mother are they individuals who are caring and filled with loving kindness if so is it fitting for you to be so callous? Did they give charity extensively? If so how can it be that their child would be stingy? We can always look back and see the rich wonderful roots that we all came from, it should help us make sure our actions are inline with our internal greatness and the great responsibility of all past generations that we carry on our shoulders.