The way I see it is, humans come first.. once they're fed, then we can help the animals. We have a tendency to criticise what we're not used to. I don't think that's right.
The way I see it a compassionate society is compassionate to all sentient beings. Anything else is just window dressing and hypocracy.
Many things vary between cultures, the ability of a sentient being to feel pain is not one of them.