Who but plutocrats would have kept abolition of slavery out of the Constitution and restricted the vote to about 3% of the then population of the colonies, only white male who could afford to own land AND pay a poll tax?
They set up the electoral college to elect the President and Senators were elected by state legislatures--also made up of plutocrats, at least more plutocratic than others. State legislatures also got to vote on ratification of the Constitution. The people got to vote only for Reps, but the Senate got to vote on ambassadors, treaties, convictions in impeachment, etc., as well as the ability to kill things passed by the House.
We've been brainwashed all our lives to practically worship these people, most of whom were wealthy, especially the slaveowners, slaves being the single most valuable thing in the colonies. But, I'm over the brainwashing.
True, they could have overthrown the British, then set up another monarchy, if they wanted. Instead, they invented something that had never existed in human history. (They did want to make Washington "President for Life," but he refused--and that's close to another monarchy with a Congress, instead of a Parliament.)
I'll give them brilliance. Geniuses, yes, but they weren't egalitarians by any means. And they feared "the mob," which is why the Senate got more powers than the House.