I think it's kind of awesome and sad at the same time.
We're programmed to trust uniforms from an early age. Anything that looks official isn't questioned.
My pet peave is when retail stores have some guy with a pad and marker checking receipts on the way out. I'll keep walking and my wife will accost me as if I'm either an asshole for not stopping. I think it's only because she feels obligated to follow the "rules". I made a purchase. I'm leaving.