Hey, you're right. Although another huge difference is that lions didn't evolve to be intelligent enough to learn to farm, invent mathematics, leave the planet etc. We are hunters, and what is going on now is a logical progression of what hunters who got smarter and more powerful would do. It sounds silly but I think that if any other hunter animal evolved like us, it would lead to very similar results.
I am not a fan of the mass farming, but there are thousands of variables that lead to our current treatment of cattle and so on.