Explanation: It's a common racist trope for ethnicities to accuse others of all 'looking the same'. This one uses the racist trope of white people accusing East Asians of all 'looking the same', and sets up the joke to demonstrate how similar white people can look if you use dumb criteria (as racists do when accusing others of looking the same).
However, instead, IT IS ~~I, DIO~~ EMPEROR AUGUSTUS, who holds offices which should all be held by separate individuals, according to the traditions of republican governance... but he collected titles like a hoarder collects junk.
I guess all these Roman office-holders DO look the same in the end... hmm...