To be fair, a lot of people do fit into that selection of categories.
For instance I can't stand people who have no clues about car, literally know nothing about them, other than how to get from A - B. and go out and buy a brand new 'Insert expensive car here' because they think it will impress their rich friends.
That would be the materialistic category.
Also this could just be me being jealous. But still annoys me