The duality of man's nature has been chronicled throughout the ages. There is good and bad in all of us. We have choices as to what aspects of others we focus upon. It's a generally accepted axiom that when something about someone else bothers us it's usually because it's a reflection of some aspect or character defect that we ourselves possess and that the animosity toward the other is actually self loathing.
As a man thinketh... so he is
I choose to try to focus on the inherent good in others. That might not be for everyone, and I can only speak for myself, but for me the world and the people around me are a lot more pleasant when I do so. I don't know much about Jim Valvano but I am happy to celebrate the things he stood for which have been an inspiration to many people who have suffered from the dreaded disease of Cancer. I'm sure that, "Don't give up, don't ever give up" has inspired infinitely more people than the phrase, "The guy was a scumbag"