For me what really makes it work is that the ‘gag’ isn’t unlabored - there’s no pithy, unnecessary line patronising the audience. We get it and move on.
I wish they’d shown such restraint and faith in the audience in SF’s ejector seat gag. Irritated by M, Bond flips the top of the gear stick to reveal the ejector seat button. M sees it, we see it… it’s funny. But showing zero faith in the audience they add M’s line, “Go on then, eject me, see if i care!”.
It’s diminishing returns once we see the red button and with M’s line the moment instantly goes from wit to cheese. What a shame.