Difference is the everyday of nomadic life. Exploring new situations nomads do not try to make sense. They respect differences as such because they evolve in a constantly changing environment.
Stable structures, united in a state of cohesiveness, automatically repress differences. Differences are a factor of instability. They are the unknown; the potential discovery of other realities.
A group of people which can be united despite its differences becomes stronger, because heterogeneity of talents make it more adaptable to changes.