Good question. We often miss Nathan Hale as a Revolutionary hero.
If he had made it back to Washington, who knows what information he had on the British. By this time the British were already in Manhattan.
He could of survived New York just to be killed on some other battlefield. His initial regiment fought at Brandywine, Germantown, and Monmouth.
But who knows, he was the only individual who volunteered for the mission. If he had made it back, perhaps he is attached to Washington's staff.
He could have been an early abolitionist leader.