To prove the point, Grijalva and team set out to determine exactly how narcissism is tied to both leadership emergence and leadership effectiveness.
“We confirmed that narcissism is neither fully beneficial nor harmful, but it's really best in moderation,” said Grijalva.
Narcissists can be preoccupied with thoughts and fantasies of their enormous success, power, attractiveness and intelligence, said the study published in the journal Personnel Psychology.
“But you have to keep in mind that although narcissists are likely to emerge as the group leader, over time, the more negative aspects of narcissism tend to emerge,” the study cautioned.