Is it possible or viable for us in sometime in the future to create a society like the one fron the Tau in the warhammer 40k.

Specifically the part about a genetic cast system where subdivision of humanity can be altern to have high baseline level of intelligence and health/fitness but different quarts, Interest, and some greater/lesser variations in their abilities/psychology depending upon their social cast (like science, engineering, military, diplomats, artist, esc.)