Talk politics.

Even back in the days of Classical Greek culture, the Athenians set up strict controls to prevent mob rule. For one thing, Citizenship was how one got to be in the electorate, let alone rule. Athenian citizens were the rich, wealthy male landowners, and not at all the entirety of the female and poor male population, let alone the slaves. Solon set up a system with sharp limits on the power of the Boule/Council because he didn't want a deteroriation into mob rule, which had connotations every bit as anarchistic to a well-educated Ancient as it did to the founders.

Where the Roman Republic had checks and balances more ornate than the USA today does, but was still very much a society of, by, and for the rich.