Getting into Star Trek of all places, some wonder how the Klingons function as a society if they are all warriors. And while all Klingons we see are tough, not all are warriors or "hear the cry of Kahless in their blood." There are Klingon pilots, engineers (Belanna from VOYAGER), scientists.
Actually, SECRET INVASION showed this for the Skrulls. For the most part, the Skrulls don't go "bloodhappy" unless they are fighting the Kree. The SI Skrulls were very different from other Skrulls. Because they were written by Brian Michael Bendis. (ZING!)