(You all may not like it, but people really did distinguish between "beasts" and "christians" in this time period. Animal Farm is a much more thorough allegory than it appears to people with no farm experience, as all the animals behave much as their real life counterparts do [I understand that in the US the police even identify themselves as "sheepdogs"; compare the Animal Farm use], and on a farm the farmers do take care to act for the immediate benefit of all the stock, just as long as they're the ultimate beneficiaries: a farm being an economic unit composed of multiple living beings but organised for the benefit of a few)