I mostly disagree. Acting in a way that is optimal for the project doesn't require you to be narcissistic, thin-skinned, revengful, etc. Empathy can be a hurdl

I mostly disagree. Acting in a way that is optimal for the project doesn't require you to be narcissistic, thin-skinned, revengful, etc. Empathy can be a hurdle in making the right decisions, for example firing a low performing employee. You could argue that someone who takes pleasure in the pain of others could be a better leader. Possibly. But first, I would still find them repulsive and second, I think you can be both decent and a good leader who makes the right decisions. Personally if I were in a leadership position I would try to "hack" my emotions and convince myself that e.g. firing someone who doesn't do a good job is a good thing overall.