You have met this person. Publicly, they are deeply empathetic. Privately, they are indifferent. They do not lack empathy; they practice what researchers term 'selective empathy.'
Empathy consists of two systems. Cognitive empathy allows understanding mental states. Affective empathy involves vicarious emotional response. Neurologically distinct, these can be impaired independently. Individuals displaying selective empathy typically retain cognitive capacity while deploying affective response strategically.
Research on Dark Triad personalities-narcissism, Machiavellianism, and psychopathy-confirms this split. While affective empathy deficits are common, cognitive empathy remains intact to aid strategic manipulation.
Key triggers include the audience effect and narrative utility. Empathy activates when there is social capital to gain or when the situation supports the individual's self-image.
The difference lies in consistency. Genuine empathy persists regardless of observation or convenience. To identify authenticity, observe how they respond to invisible suffering when no one is watching.