I don't think it teaches anything, but it is true that going out and killing wildlife is one of the main concerns in most games. Especially in WoW, from what I can tell. In LotRO you have the orcs, goblins, Dúnedain, but you still have the boars, bears, wolves, etc. It's just that, the higher you go, the more you lean towards taking out the orcs and gobs. When I was in WoW, I remember most mobs being wildlife.

I still don't believe it teaches anything though.