"In short, the production of wealth does not necessarily make individuals happy, but it does serve the needs of an economy, which serves the needs of a stable society, which serves as a network for the propagation of delusional beliefs about happiness and wealth"--Stumbling on Happiness, page 219
He argues that humans need to be delusional and transmit this false belief across generation because it helps them to save the society.
Delusional? I am scratching my head. Again.