Was George Washington rich? YES, by all accounts he became one of the richest men in the colonies. But..., he was not born rich! Yes, he was born on a rich plantation but, because of the law of Primogeniture, since he was the third oldest son, he could not inherit the wealth. How is that for being fair? He did inherit some and he married into wealth but most of it he earned the old fashioned way... he worked for it. He actually lived the American Dream.