> Everyone can be a leader.

This seems like a naive point of view. In any real organisation people naturally form hierarchies, even if they're implicit and unstated. It's just human nature. Then if someone lower in the hierarchy starts to suddenly act like a leader they'll have other people who are notionally higher than them in the hierarchy stomp on them, quelling the usurper initiative in order to maintain their own position in the social hierarchy.

This is such a deep part of human nature that people don't even know they're doing it. It's well documented in psychology texts but for some reason people deny it happens in their own workplace. Yet I've observed it happening in every workplace I've ever been in.