Ego, impulse, and opportunity: Mitigating the relationship between narcissism and self-interested unethical behavior

Grandiose narcissism – a Dark personality trait characterized by entitlement and grandiosity – is a well-documented predictor of self-interested unethical behavior in the workplace (e.g., lying for self-gain). However, less is known about how organizational contexts can be designed to limit the expression of such behavior. Drawing on trait-activation theory, we examine whether two situational features—reduced opportunity for personal gain and demanding self-reflective deliberation—attenuate the relationship between grandiose narcissism and self-interested unethical behavior. Across a two-wave experiment with full-time employees ( N = 164) that directly manipulated these situational features, results suggest that narcissistic tendencies are not expressed uniformly, but contingent on contextual affordances. Specifically, constraining opportunities for personal gain or demanding deliberation weakened the association between grandiose narcissism and unethical behavior. Theoretically, this research identifies situational boundary conditions that clarify when narcissistic traits are less likely to translate into unethical conduct. Practically, these findings provide a foundation for designing targeted organizational interventions that reduce opportunities for narcissistic self-interested unethical behavior.