Furthermore, intelligence, particularly beyond a certain level, may lead to behaviors that make acquiring or holding on to influence less likely. People who are exceptionally smart think they can do everything on their own and do it better than everyone else. Consequently, they may fail to bring others along with them, leaving their potential allies in the dark about their plans and thinking. Being recognized as exceptionally smart can cause overconfidence and even arrogance, which, as we will see in more detail later, can lead to the loss of power. And smart people may think that because of their great intelligence they can afford to be less sensitive to others’ needs and feelings. Many of the people who seem to me to have the most difficulty putting themselves in the other’s place are people who are so smart they can’t understand why others don’t get it. Lastly, intelligence can be intimidating. Although intimidation can work for a while, it is not a strategy that brings much enduring loyalty.
Pfeffer, Jeffrey. Power: Why Some People Have It — and Others Don’t. HarperCollins, 2010. p. 56