4 ms·Because we view animals as resources to be used for our ends. Cognitive dissonance is at play.by techiferous 8y agoBecause we view animals as resources to be used for our ends. Cognitive dissonance is at play.randyrand 8y agoThroughout history humans have treated humans like dirt as well. There must be more to the answer.emj 8y agoSome of us still do, it's easy to call people from groups unfamiliar to us useless or worse.