Yes, but you, for your part, have made a major difference in both your own lives and in the lives of countless others, and you KNOW what you've done. That's pretty positive.

Their method is a metaphor for lobotomy: removing a piece of a person's psyche which makes them that person. Their motive is revenge: they're out to get those who absued and oppressed them and their close friends. They rationalize it as protecting potential future victims, for the greater good, but are they morally right? Do the ends justify the means and motives? This is the moral question P5 poses.