for one Kenshin was dragged out simply to make money, if anythings articifial then its Kenshin other then the ova's

as for Naruto lacking emotion, empathy or meaning it depends on how deeply you look, nearly every speech has a hidden meaning that its up to you to decide what it means to you.


If you ever studied media, Naruto falls under the Uses and gratifications theory which means we decide what meaning we want to take out of the show, we're not force fed emotions.