Grandstanding - Willful - Selfish. A disgrace. Add more if you like.

[dchill]

6. Supercilious:

su·per·cil·i·ous

/ˌso͞opərˈsilēəs/

adjective

behaving or looking as though one thinks one is superior to others.

"a supercilious lady's maid"

synonyms: arrogant, haughty, conceited, disdainful, overbearing, pompous, condescending, superior, patronizing, imperious, proud, lofty, lordly, snobbish, snobby, overweening, smug, pretentious, affected, scornful, mocking, sneering, scoffing, hoity-toity, high and mighty, uppity, snooty, stuck-up, fancy-pants, toffee-nosed, snotty, jumped up, too big for one's boots