I don't think Aristide was a loser. The US probably did him a favor, though.

He's an ex-priest (got "fired" because he married a white woman), studied theology in Rome, speaks French, Latin, Spanish, Greek, Italian, German and Hebrew, and when he replaced Baby Doc in 1986, he was considered the "voice of the poor". Then, of course, happened what seems to happen to a lot of leaders: abuse of power, corruption, violations of human rights, nepotism, election frauds, death squads,...

Let's not forget that the Americans helped Aristide regain power in 1994 (after he got elected in 1990, but was confronted with a coup from one of his generals).
At least they removed him silently this time, without having to bomb an entire country.

Reading Haiti's history is like reading a bad b-movie... Aristide lost it, and I'm pretty sure his succesor will do just as bad...