The risk of combat is what peasants are for.
Actually, Harry *wants* to go and has been threatening to resign from the army if he isn’t allowed to deploy with the rest of his unit.
Harry actually wants to make something of himself instead of being a useless national ornament - so give him credit and cut him some slack.
His uncle, Prince Andrew, flew combat missions as a helo pilot in the Falkland's War Task Force and he got criticized for that too.
In Iraq, with the enemies we face, every "peasant" in Harry's unit would be at much greater risk as that particular unit would be specifically targeted by every suicide bomber in Iraq.