Narcissism probably isn't the right word for me to be using here. It was on my mind because of this comment, where there happens to be more discussion of it: https://news.ycombinator.com/item?id=27920152. And it happened to fit the case I was thinking of at the time. But it probably shouldn't be part of my original comment. Specifically what I'm referring to is an integral part of paranoia: someone thinking that, while long-term unemployed and living with their parents in their 40s, they are so "in the loop" as to be aware of conspiracies and such a threat to those conspiracies that they're a target. I have a hard time not equating that attitude with a little bit of narcissism, though again - probably not the right word to have used when discussing specific disorders.