Makes sense, I guess.
They don't prevent anything evil; they get downright snarky with anyone questioning their affairs/prerogatives; they only observe, without interfering, then write a report that we never get to see; they make sure they're busy giving Elvis a lift or something over there, when they are really needed over here.
“they make sure they’re busy giving Elvis a lift or something over there, when they are really needed over here.”
I guess that is the same as my thought - there’s never one around when you need one.