Leaders often lament that it's lonely at the top. What great leaders don't mention though is that they aren't just lonely at the top, they were probably lonely on their way there.
Organizational psychologists have found that exceptional leaders are rarely team players. They don't have a need to work in a group. They consult others and listen enough to make a decision, and then move on. And they don't need for others to be in agreement.
Those who manage by consensus on the other hand, have a need to make sure that everyone is heard and that they are all happy with the final decision. To their credit, this trait makes the lives of those more senior than them easier, and as a result they get promoted faster. After all, they don't cause a commotion.
Once they get to the top however, they end up with leadership by consensus, which is no leadership at all.