This just crystalized something for me. I like to create stuff with people. Once I find that someone is thoughtful, reflective, or whatever you want to call it, I like to talk with them in a manner that prods the abstract. It now makes sense to me that my most successful collaborations have happened with people with whom I can easily speak in the abstract. Details and competence are real things, but they are not the most important things by a long shot. Details can't be accounted for except for the fact that they will arise and they will have to be dealt with in one manner or another. Also, besides a reticence to talk in the abstract, one thing that puts serious doubt in my mind about people is self-help books.
Well, I am sure that some will disagree, but what I've seen, most of what is in self-help books is common sense, although the best wrap it in amusing or counter-intuitive anecdotes. I think self-help allows people to convince themselves that there's formulae to life, when it's really just a matter of doing things in earnest and learning as you go.
So, basically I see self-help books as a sign that someone over-values impersonal advice. Not a sign of confidence, IMHO.