In vino veritas. Ergo, cum vino immortalis ero. Quod erat demonstrandum.
k9aq instead of the regular ka9q.
Those were the days.
'Twas the jester's agenda all along!
Not quite what you're after: Vance Joseph Hoyt wrote a few sympathetic books about animals. I have this one, from 1933.
Perhaps overly obvious: Plague Dogs, Wind in the Willows, Black Beauty, The Mouse and the Motorcycle, Cujo. I'm not always good at coming up with lists on demand, so some might occur to me later.
Oh! Lives of the Monster Dogs by Kirsten Bakis is another.
Greed is part of it, yes. But not the whole story. And attempting to educate them is only one possible approach to countering it, but once again not necessarily what I had in mind.