To illustrate, you might enjoy Joseph Henrich's example of how the Ilahita tribe of Papua New Guinea was able to expand their tribe size beyond the Dunbar number (>300 people). In their case, having a large enough tribe to battle neighboring tribes was a matter of survival against an existential threat. (11:20 - https://www.youtube.com/watch?v=kmpSwbtWopM)
What's interesting in the scenario presented was the tribe expanded their religion to a dual moeity system. This introduced new rituals and gods that helped the tribe form economic, social and emotional bonds - ultimately allowing the tribe to expand in size.
Its an example of how _belief_ in gods that are contradictory to our modern science provided an organizational fitness function to combat their environment.
I'd imagine very few people actually interpret their world through a scientific belief system. Further, what some consider scientific, might not fit the belief system of others who are more rigorous. The lack of widely accepted model for beliefs based on _scientific thinking_ might be the scariest part of our society today. Personally, I blame the short-comings of our language as it is not well suited to communicate scientific knowledge efficiently (ie, for 3rd grade readers) and without ambiguity.