After the initial revolution, Haiti was the most prosperous Caribbean country and experiencing economic growth that rivaled many European nations in relative scope. Once the French tried to re-invade, and the US and Europe systematically blacklisted the nation with trade embargos (to prevent them from becoming successful and having Black slaves and colonized people elsewhere get similar ideas) that original revolutionary culture was destroyed and replaced with stagnation, petty squabbling over limited resources, and corruption, Haiti became what it is now.
If the French had not invaded/the white West hadn't systematically acted against Haiti's success, it would have been an extremely prosperous nation now.