Human beings fall into four basic categories: the helpless, the intelligent, the bandit and the stupid.
Law 3: A stupid person is a person who causes losses to another person or to a group of persons while himself deriving no gain and even possibly incurring losses
Carlo Cipolla, The Basic Laws of Human Stupidity
The helpless are those who harm themselves and benefit others (lose-win).
The intelligent are those who benefit themselves and benefit others (win-win).
The bandits are those who benefit themselves and harm others (win-lose).
The stupid are those who harm themselves and harm others (lose-lose).