Dude...this isn't about empathy or even ethics. This is about show business. Characters on all kinds of shows do all sorts of things that the actor/actress wouldn't do in real life and wouldn't be proud of, but it doesn't matter because it's FICTION. FICTION. What about all the characters in TV history that are murderers, rapists, drug dealers, wife beaters, etc. Why is that any different? The script calls for them to do something terrible, the actor does it, and we all move on with our lives. If the actor doesn't want to perform whatever act and can't come to an agreement with the director and/or the production company, they part ways. Why is this different?