[tunesmith]

I have a hard time with the concept of retribution alone, but I think if it is phrased in terms of modeling societal standards and demonstrating to others that this behavior is unacceptable, it is still valuable to society. I guess you can mark that under "deterrence", but it's less about sending a signal to future would-be criminals, and more about communicating and demonstrating societal standards to the entire society at large.