From Spoiler:
It refers to the posture of a person who thinks he is too important, too superior in order to talk to others
he deems inferior: They hold the head high, which is a physical way of ignoring other people's presence whilst
showing alleged superiority to them: They stick up their nose (to the sky)
Some adjectives for the state of mind of those people are: snobbish, conceited, arrogant, pompous, supercilious, snooty, priggish...
I know a bunch people like that. But Thank God only a bunch of people.
Thank you too, it confirms my understanding