One of the "benefits" of traditional society is that there's a stronger gravitational pull towards the orthodox. e.g. dealing with the majority case deals with

One of the "benefits" of traditional society is that there's a stronger gravitational pull towards the orthodox. e.g. dealing with the majority case deals with 80% of all cases. VS in a more diverse group, the biggest pie slice might only be 20% The system has a much higher burden of complexity to deal with edge cases. An argument can be made that Dunbar's number sets a cap on the complexity a system can deal with. External scaffolding like a legal system increases system capacity which then reduces how necessary the orthodox gravity is.