Everything depended on his character
George Washington was named Britain's greatest-ever foe.
The descendant of an English family, Washington was born a British subject and fought with the British army. When he felt compelled to defend his freedom, and the freedom of Americans, he became Britain's greatest foe because he had the greatest character.
For one thing, he was absolutely incorruptible.
I know of very few men who have given up power because they knew it was best for their country.