David Wilcock is one of the most genuine and hard working New Age Philosophy researchers ever, in the same mould as Richard Hoagland. Not much scope for NPD with those guys, at least I do not think so.
I have to agree on David Wilcock. I saw him in person and spoke to him at one of his seminars. I've watched his videos , and I look at his website now and then. I didn't get a Narcicistic Vibe from him.