As anyone who has spent time in the military will tell you, as you gain seniority, you also gain colateral duties. In the Navy you have Divisional Supply Petty Officer, or Divisional Damage Control Petty Officer, or Command Training Team, etc.
I had a nametag made up that I wore while standing the very formal 'In-Port Officer of the Deck' watch on the ship's quarterdeck. It even had the command logo attached to it so it looked official. It said COMMAND DILLIGAF OFFICER.
Since I always appeared 'squared away', I wore that thing for a year without anyone even questioning it!!!
"Why do I do this? Because the money's good, the scenery changes and they let me use explosives, okay?"