Malignant narcissism has been described as an extreme form of antisocial personality disorder that is manifest in a person who is pathologically grandiose, lacking in conscience and behavioral regulation, and with characteristic demonstrations of joyful cruelty and sadism.
Cruelty can be described as indifference to suffering, and even positive pleasure in inflicting it. If this habit is supported by a legal or social framework, then it receives the name of perversion.
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