The noun cavalier became a adjective meaning arrrogant or haughty

The noun cavalier, originally coming from the French word chevalier, which meant knight or horseman, became an adjective meaning arrogant or haughty through the process known as pejoration.
Given that its meaning became worse than its original meaning, it is pejoration. Amelioration happens if the word gets a better meaning than the original one.

Echo act 1 now keep the answers educational.

Culture dramatically affects heroes.first, it affects the way a person or character perceives a certain  situation or idea, it affects their point of view on many idea's and topics. next, it  affects how the hero is seen in the story. third, it affects the way a character will act on an idea or situation.