The EN World kitten
That's not necessarily behavior inspired by humans:Because it's not authentic. You're looking at humans in the real world and deciding that non-human creatures in a fantasy world act in the exact same way.
There's a good chance that slave-maker ants are near you right now.
Given that, it's not hard to imagine that these guys...
...have decided, "hey, maybe those fleshy things that have their skeletons on the inside could be put to work too!"
Heck, maybe the local humans, demihumans, etc., got the entire idea of slavery from their ant overlords.