IIRC
After the war, there was a general meeting of the officers of the Continental Army. They very disillusioned regarding pay and other issues. They encouraged Washington to lead the army to Philadelphia and take over the government. Washington told them no. After the meeting he rode to Philly and surrendered his sword to the continental congress to acknowledge civilian control of the government and over the army.
I think it was George Will who said, Clinton may not be the worst president, but he is the worst man to be president. You can say that if Washington was not the best president, he was the best man to become president.
He understood what needed to be done to get the country going, the role of the president, and he set an honorable example.