Why are we bad at picking good leaders?

Points from the book (titled above) by Jeffrey Cohn and Jay Moran and quoted from Leadership Freak:

1. Integrity. “Integrity is the fundamental leadership attribute….Integrity is the fundamental attribute that keeps everything else secure.” Without integrity, things break down fast.
2. Empathy. Defined as a fundamental ability to tune in to others, it “is critical for leadership for many reasons. Combined with integrity, it drives trust. It gives followers a sense that their interests are being looked after, and this creates positive energy. Followers who sense that a leader appreciates them are motivated to carry out their duties in a more committed way.”
3. Emotional Intelligence. This is self-mastery or the ability to “perceive, control, and improve the connection between what we feel and the way we act.” It’s about self-awareness. Do I know myself? Can I control myself? Do I look for ways to improve?
4. Vision. A frequently abused term, vision starts with imagination and an inquisitive mind. “Visionary leaders are good storytellers who are capable of weaving together interesting connections.” Vision provides direction.
5. Judgment. Good judgment is good decision making. “This sounds simple enough, but the origins of how and why people make the decisions they do are actually quite complex.” It’s the ability to zero in on what’s important, see the whole chessboard, and take decisive action.
6. Courage. There is always conflict. “Leadership means being on the front line of those conflicts. It means facing conflicts, mediating and shaping them, sometimes at the risk of great personal cost or freedom.” How often does a fear of standing out inhibit your ability to do the right thing?
7. Passion. A leader’s passion or drive is important because it creates positive energy. “They attract followers and act as catalysts for the formation of highly motivated teams.” High energy and enthusiasm are signs of passion but the trick is to determine where that fire comes from and is the leader in it just for themselves. There is a balance to be maintained with the other six attributes.