"What does his rank have to do with anything? Or is washing a car below someone holding a queen's commission... "
Quite frankly, yes!
Or at least it bl@@dy should do.
"Rank hath its priveliges" unfortunately is no longer true in todays Britain.
Unfortunately now rank only has the responsibilities and none of the Perks. No wonder everybody gets disillusioned and leaves.
If you don't want to wash cars for officers, you should have to get some ambition and get promoted!