Oh, no doubt. It's just like Germany, they had two world wars, and we're bankrupted from paying reperations, and look at them, crawling in the sewers as they have no way of stabilizing their economy. 
Similar tale with Japan. Many countries have been through hell and back and rose from the ashes. If anything, a traumatic history should drive the citizens of such nations to improve and move forward.
However, when a country remains in dire straits year upon year without any sign of improving, you have to start questioning the initiative of the inhabitants.
The black posters here (Parker, Andre etc.) are intelligent guys and as a non-white myself, I'd like to hear what factors (outside colonism) they feel are responsible for the problems countries like Haiti have.