“For out of such an ungoverned populace one is usually chosen as a leader, someone bold and unscrupulous who curries favor with the people by giving them other men’s property. To such a man the protection of public office is given, and continually renewed. He emerges as a tyrant over the very people who raised him to power.”
– Marcus Tullius Cicero, in De Republica

The Founders warned of just this very type of leader in the Federalist Papers; as did Alexis de Tocqueville in Democracy in America.

Here is famed Hollywood Screen writer Andrew Klavan explaining de Tocqueville warning: