The ones that are started without any religious ideology as their basis.
Yes, I know what you were referring to. All I asked for were examples.
The Carvakas for instance.
Okay. That seems a problematic example, though, in that it's unclear to me that there was a distinct society associated with Carvakas. That is, it seems to be a movement that was embedded in an existing religious society.
Likewise, it's difficult to gauge the progressivity of that group, existing as it did in a long-gone context. But I'd be interested in learning more about their history, if you know any good sources.
Are there societies that have regressed that you consider politically materially or spiritually rich?
Yeah sure. Or, richer than they were prior to the regression, anyway. For example, pretty much every fascist movement in history has applied social regression to achieve material and political power. That's almost the definition of "fascism." And of course, all of this depends on what you consider to be "progress" in the first place.
But it's a serious problem for progressives, that social progress is often at odds with material and political strength. Utopian fantasies about harmony between progress and power are just that. If it were otherwise, social evolution would already have provided us with such a Utopia.
Thats easily ascertained by comparing what they say the religion preaches with what they practise.
But then, perhaps what is preached is not really the religion at all, or anyway not the whole story. And then, of course, there's the problem of reconciling different preachings, and different interpretations of those preachings. "What the religion preaches," is not available to us in any definitive form, in the first place.
More interestingly, perhaps the real religion lives somewhere in the tension between preaching and practice. After all, there wouldn't be any need for preaching in the first place, if everyone were already in perfect adherence with the precepts.