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Social expectations vary by social class. The low education religious people you describe are a different social class from educated business and technical professionals"
Technically, I can't argue with the "religious" description, since I attended the one cousin's ordination as a Catholic priest a couple of years ago, but prior to that he was a Navy submarine nuke and an NRC inspector. His brother is an engineer with the USACE. And their father was an engineer. And I've known countless "business and technical professionals" less educated than their mother, a Latin teacher.
You may want to consider leaving your bigotry at home.