This is specifically what made me actually like Kira better than Dio as a main villain. Don't get me wrong here, Dio is fantastic. But Kira just seemed more realistic, more complex, and more human of a character. Which makes him have more of an impact to me. The problem with Dio is just that he just became TOO powerful, and became something unrelatable in real life as a result. Kira, on the other hand, could really be someone in real life (Stand powers aside), and I thought it provided a very believable and fascinating look into the mind and life of a serial killer.