His hostile expressions are not constructive they are destructive because they are diffuse, excessive and, therefore, unclear. He does not lash out at people in order to restore his lost esteem, his prestige, his sense of power and control over his life, to recover emotionally, or to restore his well being. He rages because he cannot help it and is in a self destructive and self-loathing mode. His anger does not contain a signal, which could alter his environment in general and the behaviour of those around him, in particular. His anger is primitive, maladaptive, pent up.
Anger is a primitive, limbic emotion.
Its excitatory components and patterns are shared with sexual excitation and with fear. It is cognition that guides our behaviour, aimed at avoiding harm and aversion or at minimizing them. Our cognition is in charge of attaining certain kinds of mental gratification. Anger is evoked by aversive treatment, deliberately or unintentionally inflicted. The angry person and the Personality Disordered both suffer from a cognitive deficit.