[dimquest]

Third (and Golden) Law

A stupid person is someone who causes damage to another person, or a group of people, without any advantage accruing to himself (or herself) -- or even with some resultant self-damage.
(We shall come back to this, because it is the pivotal concept of the Cipolla Theory.)

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The author ignores the fact that some groups of stupid people are so dangerous that they must be damaged, even if the immediate result is self damage at no gain.

[King Prout]

the author doesn't ignore that, necessarily.
long-term profit IS still profit.