McLean and McMillan wrote:
“Aristotle distinguished between rulers who govern in the general interest ... and those who govern in their own interest (oligarchy).”
On several occasions in the history of Rome, law-making and administrative powers was taken over by force by a few people, (e.g. a triumvirate) who then proceeded to govern as a multi-headed monarchy.
REFERENCES:
- McLean, I., and McMillan, A., Oxford Concise Dictionary of Politics, (Oxford: Oxford University Press, 2003)