I agree with your thesis, and it's also exemplified in other religions such as the Indian Medicine Wheel, the Borrican diety calendar and I think the Hindus also has something like that but I forget the name for it.

And it is true that Christianity had a lot of influences from the Greeks. For what also comes to mind is stoicism, which in its own rather passive-aggressive way was a resistance against the moral derelictions of oligarchs and other rulers who lacked virtue.