I don't really agree with the blanket good/evil assessment, Lonn - maybe if we were talking strictly common society's interpretation of good, but the key things in your example in my opinion are ones I myself addressed as well, that I don't think have anything to do with good vs evil, but the attempt to heavily change or suppress its natural instincts. A good ranger does not take his wolf to church or try to dress him up, eh?
Of course, it's nothing like an animal companion either, but I'm just saying
You don't have to be evil to let something be itself at its basic level; even in the evil example, its instincts were being guided/forced to serve someone else's ends. I'm not sure trying to totally destroy a person's nature to recreate them into something YOU want is even really 'good', except that they do it unthinkingly and without conscious malice.