Slaves in this antediluvian epoch were not regarded vocally, in believe or in actions as any better worthy or eligibly better than a mere Security Dog that is intelligent in detecting suspicions. Dreaming for comfort was just a wild goose chase if any better than fantasy.
Generally at that era, life was not shaking humans fairly who were at the seat of the food chain and the variation between the human slaves and those not officially called slaves, but were humans, had little to no difference as far as they got introduced to the world of the power holders. A world which to them should better be called a Hell or a foul disgusting land of ferociousness. They lived like disabled domestic dogs in the empire of hyena dogs.
What made humans at the bottom of the chain? The answers were obvious: Lack of superpowers, full of secrets in between each other, absence of unity and laziness talkless of civilization.