Just as there can be narcissism / insolent pride within an individual, there can also be entire cultures and nations that have narcissist characteristics.
What is a narcissistic culture? A culture where the preponderence of the people are narcissists and act in narcissistic ways. Or a culture (or nation) where the entire group acts toward other groups with the heart and behavior of a narcissist.
Two such cases in the Bible were the nation of Moab and the nation of Edom. Moab was the nation which came from the incestuous relationship between Lot and his older daughter. Edom was the nation which descended from Esau, Jacob’s twin brother.
Referring to Moab……
6 We have heard of the pride of Moab, an excessive pride;
Even of his arrogance, pride, and fury;
His idle boasts are false.
29 “We have heard of the pride of Moab—he is very proud—
Of his haughtiness, his pride, his arrogance and his self-exaltation.
30 “I know his fury,” declares the Lord,
“But it is futile;
His idle boasts have accomplished nothing.