Qcmbr,
As Abaddon pointed out (on the first page of this thread) "God" (in its various versions, i.e. different monotheisms) has affected only a small part of human history since his "birth" around the 6th century BC. There were "rich, proud and self-sufficient" societies (and poor, meek and dependent ones too) within and without his realm of influence.
More generally, it is apparent that the realm of "religion" has shrunk almost everywhere. In traditional cultures it was coextensive to society, now it is reduced to a definite territory. Even in "theocratic" regimes (islamic states for instance) science, medicine, psychology, philosophy and art are distinct from religion in principle and in fact. That's what we call secularisation and it is a worldwide and probably irreversible phenomenon. The other side of the coin is that religion, discharged from the general care of society, is getting more and more religious -- and even the wildest dreams of religious restoration reflect that fact.
Will "pure religion" (with or without "God") eventually maintain itself as an irreducible bastion or completely vanish in the long run, that is the question. Anyway it will have to cope with the fact that large segments of society have already got used to make sense of life without it.