The third estate had effectively politically overthrown the old regime by like day five of the estates general. There would still be a king, but the clergy-nobility-commons divide was gone and there would be representative government. Not enough, obviously, but a step in the right direction.
Denton decided the people he didn’t like needed to die and that sent things spinning out toward murderville for everyone, including eventually himself. Basically everyone who would have built upon those small steps fled the country or were murdered. Many of them were shitheads, yes. But I think France would have been better off without the head-choppy parts of the revolution.