TBH I don't see why other games doing the same thing makes this any better. And I don't really see why having these gameplay elements as options as opposed to forcing you to do them really improves things either. I get that you don't have to work seemingly sentient creatures to death, or butcher them for food, or capture and sell humans, but I also understand there are gameplay advantages in doing so.
I'm not suggesting that everyone who plays the game is morally bankrupt or anything, and I'm sure you can play it quite innocently without partaking in the more extreme forms of abuse, and even if you choose to in a tongue in cheek manner that doesn't make you a bad person, but the options still there, and when you combine it with the games art style that appeals to children (regardless of what official rating the game gets) along with it's seemingly viral popularity, I do think that's troubling. It certainly provides an avenue for more impressionable minds to be de-sensitized to this kind of thing, or for less savoury types to outright indulge in it, potentially feeding real life impulses for similar experiences.