snob — a person who imitates, cultivates, or slavishly admires social superiors and is condescending or overbearing to others.
highbrow — a person of superior intellectual interests and tastes.
stiff — rigid or firm; difficult or impossible to bend or flex: a stiff collar.
name-dropper — a person who indulges in name-dropping.
social climber — a person who attempts to gain admission into a group with a higher social standing.
stuffed shirt — a pompous, self-satisfied, and inflexible person.
adjective elitist
discriminatory — characterized by or showing prejudicial treatment, especially as an indication of bias related to age, color, national origin, religion, sex, etc.: discriminatory practices in housing; a discriminatory tax.
selective — having the function or power of selecting; making a selection.
snobbish — of, relating to, or characteristic of a snob: snobbish ideas about rank.
superior — higher in station, rank, degree, importance, etc.: a superior officer.