How the hell do you know whether they're self-centered or not, and why does it matter? It's either good policy or it's not. "Unnecessary" is in the eye of the beholder--you can argue for your point of view on why it's not necessary without automatically assuming someone is a villain here. In the big scheme of things, I think the NTSB's work has saved a hell of a lot of lives, I just think they're out of their depth on this one.