Why are leaders commonly villains? They have some fears and insecurities that cause them to act in ways that are fully justified to them, but are actually damaging to those they lead.
The fact that very few of us can clearly identify mindsets that drive success is problematic. It is problematic because we have little clarity on what to focus on. And, even if we feel we do have clarity, how certain are you that what you have chosen to focus on is actually the best thing to focus on.