Relationship Between Leadership, Personality, and the Dark Triad in Workplace: A Systematic Review.

The objective of this systematic review was to explore the interaction between Dark Triad traits (narcissism, Machiavellianism, and psychopathy) and other personality dimensions in the workplace, and how these combinations impact the performance of employees and leaders. Fifteen empirical studies published since 2014 were analyzed, which assessed the influence of Dark Triad traits along with other personality dimensions, such as the traditional Big Five (neuroticism, extraversion, openness, agreeableness, and conscientiousness), on performance, interpersonal relationships, and organizational satisfaction. The results suggest that narcissism is negatively related to agreeableness and self-control, Machiavellianism to empathy and agreeableness, and psychopathy to conscientiousness and empathy. These traits also affect job performance, as narcissism and Machiavellianism are associated with work addiction, while psychopathy is linked to lower responsibility and self-control. Additionally, leaders with high levels of Dark Triad traits experience reduced performance, especially in lower hierarchical roles. It was found that emotional stability can moderate the negative impact of narcissism, and that less regulated organizational contexts exhibit more interactions involving these dark traits. These findings provide valuable insights for developing talent assessment and management strategies aimed at improving organizational performance and climate through evidence-based approaches.