Stuart Chase wrote a book of that name back in 1934. We don't have to attain a Western lifestyle and education to reduce population or recognise our unsustainability. It would seem we need to radically change our world view. The success of the objective faculty of reason has suppressed our subjective faculties from which we find meaning and purpose in life. We seem unwilling to accept the findings of research into social dilemmas.
Reason is the faculty for learning through knowledge.
Wilber sees the whole of history, and therefore the future, as an evolution of human consciousness. An evolution that transcends and includes previous levels of consciousness, including economic consciousness. Many of these of course are not new. They are old practices using new technologies and rational thinking - but that too is rationality at a higher level of consciousness.