The Empire would not function without Goblins, and yet, their social status is on bottom of the pyramid.
“Girl, I don’t think you would know a goblin if you were standing in the room with one,” he snapped.
Through generations of selective breeding, vargar have developed into three breeds; Goblin, Orc, and Throwback.
Goblin worgs were bred for friendliness, and as a side effect, they became brighter.
Orc worgs were bred to be companions to Balorian scouts. Initially they were bred for loyalty and friendliness, but not brains. They are smart enough as far as orcs are concerned. What they weren't was big enough.