Sniper check: why do we salute in combat zones?

I personally think the practice is incredibly stupid and the idea of someone with an overinflated sense of self importance. I understand the purpose of showing respect but there has to be some common sense applied while in theater.

It's the only exercise officers get while stationed at Bagram.

In early 2003, our SCO came out to check on us and I greeted him at the Blackhawk and just told him that I directed that none of my troops were to salute him. He thanked me. But fast forward a decade and cue the FOB life.....