The Square Peg

A friend told me recently that she'd never watch another movie featuring Brad Pitt or Angelina Jolie because Brad cheated on Jennifer Aniston and Angie broke up Brad and Jen's marriage. My friend said she has a serious dislike for homewreckers.
When another friend updated her facebook status to say that she was 'glad the pedophile was gone' when Michael Jackson died, numerous friends posted comments; some in agreement, others who insisted MJ's talent be separated from his personal life. Is a person his talent, or is a person his character? Should people only be defined one way?
I'm curious to hear from you. Would you share your feelings about this? Do you separate a person's talent from their character? Would you vote for a politician knowing he was immoral if his policies directly affected whether your job was kept or done away with? Would you quit supporting your favorite basketball team with your game attendance if one of the players was abusing his wife? Why do you believe the way you do and how did you come to your conclusion?