TV Shows Support Troops?

Anyone else notice how ironic it is that we are at war (although I guess it hardly feels like it for most of us, including myself, I mean, nothing has changed in my life), and television is always plugging the support of the troops; yet, so many TV shows, like Criminal Minds and Law & Order, have a lead, sadistic villian, who has been in the military and received a dishonorable discharge. Doesn't seem like now is the time to paint such a depiction, does it?