I am embarrassingly ignorant when it come to other languages but it's notable that English uses descriptions of foreign and historical entities when describing bad behaviour, such as vandal, barbaric, thug. To renege on a deal is to welsh. To insult someone you might call them a moron or a cretin, words that referred to the capacity of those we now class as special needs. In British culture politeness is a sign of breeding if you are upper class and subservience if you are poor. Likewise anger is seen as authoritative if you're a rich white male, unseemly if you're a woman and disrespectful if you're poor or foreign.