If this notion interests you then let's list qualities that we might explore in historical  terms of understanding, impact -positive and negative and so on of what, in some  societies, are considered human qualities.  I shall open the first with loyalty.

Magnanimity - defined as generosity of spirit.

Stupidity - especially the willful variety.

It has had huge historical impact, in fact much more than intelligence.

nordmann wrote:

Stupidity - especially the willful variety.

It has had huge historical impact, in fact much more than intelligence.

Particularly when, as it often seems to be, combined with obstinacy.

I assumed that stupidity came in genes - and t shirt on occasion. Is it a quality? A strained one then that droppeth like one god-almighty hail storm and so on. However, start a thread on it, do and high light historical instances...... well some of them. Or was my notion a stupid idea; yeah, probably.