Creativity & Violence

Whilst I agree with Stephen King's overall theme in this essay:

 http://www.ew.com/ew/article/0,,20036014,00.html?cnn=yes

I think I take exception to this part:

"For most creative people, the imagination serves as an excretory channel for violence"

Hmm. I write crime novels for a living (just about), and whilst I do use my imagination to create conflict, I don't fantasise about it.  Is this what he's implying? Or have a missed something? Maybe I'm become over-sensitive since someone told me that it was a sick thing to do as a career (and I don't write anything near as violent as say Tess Gerritsen, or Karin Slaughter).