English does not distinguish between arrogant-up (irreverence toward the temporarily powerful) and arrogant-down (directed at the small guy).
Nassim Nicholas Taleb, The Bed of Procrustes: Philosophical and Practical Aphorisms
arrogance, bill-o-reilly, blue-collar-snobbery, egalitarianism, elitism, narcissism, pride, pride-and-prejudice, proud-ignorance, racism, tea-party-movement