What Giftless is describing is the human power of empathy, which not all other creatures, intelligent or not, will necessarily possess. Empathy evolved for us due to various factors - it's not necessarily going to be something that an intelligent alien being has as well. And since that's where the majority of our morality comes from, I don't dare guess what the morality of an intelligent alien being might be. It's going to be impossible to predict.
Rats have empathy. Considering their little brains and lack of what the religious would call souls or an understanding of god it's probably more common than you might suppose.