The president 2019: Donald Trump
Slaves worked for free and had to do all hard labor that they were told to do.
The factor that did not contribute to industrial revolution are the people who wanted to maintain feudalism to stay in power. I think the landlords who are used to this system and did not try to adapt wouldn't want that significant change.
Answer:
The Founding Fathers, the framers of the Constitution, wanted to form a government that did not allow one person to have too much authority or control. While under the rule of the British king they learned that this could be a bad system.