You see, once a soul has been corrupted that much, it is nigh impossible to return them back to normal. There is more to it, as well. A corrupted soul will stop at nothing to continue to consume more power, and they run the risk of turning "kishin." This means that they can turn into a powerful, destructive being that will spread insanity and madness throughout the world.
That is why they must be eradicated before that happens. We already have one, we do not need more.
[ action ]
You see, once a soul has been corrupted that much, it is nigh impossible to return them back to normal. There is more to it, as well. A corrupted soul will stop at nothing to continue to consume more power, and they run the risk of turning "kishin." This means that they can turn into a powerful, destructive being that will spread insanity and madness throughout the world.
That is why they must be eradicated before that happens. We already have one, we do not need more.