[Jacquerie]

The Framers considered the nature of man and concluded it was best to fetter them beyond oaths.

Here is an FR post that addresses your concern.

[EternalVigilance]

Your linked essay asserts checks and balances as the solution to the problem. But checks and balances can only be applied by those who are themselves morally committed to the obligations of their own oaths.

"Let it simply be asked, ‘Where is the security for property, for reputation, for life, if the sense of religious obligation desert the oaths...?" -- George Washington

"We have no government armed with power capable of contending with human passions unbridled by morality and religion. Avarice, ambition, revenge or gallantry would break the strongest cords of our Constitution as a whale goes through a net. Our Constitution is designed only for a moral and religious people. It is wholly inadequate for any other." -- John Adams