People who have conservative moral judgements on a number of hot-button issues tend to have the "dark and socially destructive" personality traits of machiavellianism, narcissism, and psychopathy, according to an article in the journal Neuroethics.
Assuming that a "person's moral judgments 'fit' their personality",
Marcus Arvan, of the University of Tampa (in Florida), survey a number
of people in their 20s to see if there were correlations between
conservatism and "the dark triad". He found 11 significant correlations
between the Dark Triad and conservative moral judgments on capital
punishment, indefinite detention of suspected terrorists without trial,
the right of a government to wage war in violation of UN resolutions,
the view that government should never intervene in free markets except
to prevent force and fraud, and gay marriage. There was no correlation
of the Dark Triad with liberal moral judgements.
The study was based on brief questionnaires on the internet by 567
participants (302 male, 257 female, 2 transgendered; with a median age
of 28). Dr Arvan says that his findings are "significant and
provocative" and need to be researched further.
~ Neuroethics, Oct 25
what is the dark triad?