For example, it's widely accepted that pigs are extremely intelligent animals, capable of feeling pain and suffering to a degree more sophisticated even than young children.
And yet treating young children with the same level of disregard-for-suffering that we routinely, banally treat pigs with is considered a capital crime.
At a certain point, we'll have to resolve this societal cognitive dissonance. I strongly suspect it will end up being resolved with animals being granted a far greater degree of legal protection from pain and suffering than they have now.