Maybe as an ex bag dropper I'm prejudiced but
they know all the tee times and have to handle that end
have access to what's going on in front of you
keep carts running and clean and ready to go
find all my lost "stuff"
can lend you a putter or club or umbrella in a pinch
is the first line of defense and last guy to say goodnight for the club
etc etc etc
I really don't care about my clubs being "swiped" but the bag guys are always important to my day