Moral Narratives Form Chosen People Logic & Drive Major Cultural Distinctions

 Thinking of this in terms of the idea, from The Dawn of Everything, that major socio-cultural evolution solidifies around moral meta-narratives that allow people to say "we are the group that does/values X, while they are the group that does not".

Its less standard evolution applied to cultural traits (as per most cultural evolution books suppose), and more random minor differences that then get moralized in terms of a narrative (as per moral Group Agent theories).  Group Agents then enable adherents to theorize why they are "the chosen people".  This is the moral narrative re-interpretation / invention.