Japanese anime and games can be weird like that. "No, you can't kill the bad guy, or you will be just like him!"... even though said bad guy is actively trying to kill innocent people and just killing the bad guy is the simplest way to stop him (Xenoblade 1 comes to mind, Tomino Gundam). Or "whatever legitimate grievances you have are irrelevant. Stop fighting!" (Miyazaki's Ghibli films, Pokemon, Tomino Gundam, etc). Attacking people, or god forbid, killing bad guys, is a heinous act that good guys never do. (I mean, not killing people is preferable yes, but often Japanese fiction I've seen seems to take it too far to the point of ridiculousness).