Salvation from below?

I am about half way through our reading and after learning of the “Ubermensch”, I am seeing Fred Daniels as his own version of a savior. As he finds his new life under ground, he acquires all of these new things and ponders over life above ground and how people have let themselves become so enamored with useless trinkets. Almost everything he acquires becomes trivial. The money he took holds no true value and to show it, he used it as wallpaper. He longed to tell the man guarding the jewelry shop how meaningless his task was, being that he was risking his life for some rocks. 
Fred fantasizes about one day coming back and enlightening the people above. Maybe Wright’s idea of the next evolution of mankind abandons materialism?