Redfield makes Peck's goal of "growing toward Godhood" very explicit and literal here. The vision is simultaneously ecological, technological, and spiritual. I'm not surprised that people have been attracted to it.
The idea of recreating your body at a "higher vibrational level" so that it can be materialized and dematerialized at will goes back at least to the alchemists. It shows up in various Western mystery traditions.
The prediction that we will go around handing money to anyone who gives us spiritual insight seems wacky to me. For one thing, it would force us to quantify our spiritual insights, which is a little hard to picture. (Is this a $10 insight or a $100 insight? Would it bum you out to tell someone the secret of life and have them give you a dollar for it?) Many people have the fantasy that they can divorce themselves from the economic world and get paid to "be spiritual". I doubt this would be healthy even if you could pull it off. If people can't figure out how to limit their material needs and provide for them simply, they can't be all that advanced. Giving them large sums of money in exchange for their insights just shouldn't be necessary.