Not much really. I think Washington was well aware of Hamilton's ambitions and used him to his advantage. Remember that it was Washington who warned us against political faction (parties) war and said "Government is not reason, it is not eloquence. It is force, and like fire, it is a dangerous servant and a fearful master."
I guess it comes down to whether you see the Constitution as the source of the problem or not. I think after 200 years of steady and unchecked growth of national power, it's a bit weak to simply say it'd be fine "if only." If only pigs could fly, I say.
Washington wanted America to be an empire. He used the word several times. He got his wish. Hamilton was right there with him. If anyone got used, it was Madison and Jefferson. Madison, who I also used to revere, comes off like a dupe.