Oh my goodness, the open purse scenario. Sure millions will be poured into the Hatian bucket and flow out of the old stratigically and economically placed holes, none of the money but a pittance for the local sociopathic elite stays in Hati and that has made the disaster a hundredfold worse than it might otherwise have been. There is absolutely nothing to prevent the same flow this time. Look for bare subsistance as the likeliest outcome, again, and completed carnage and wholesale slaughter at the worst as hemispherical priorities are addressed. If those holes were patched Hati would become a vibrant strong independent nation beholding to none. "It dosen't happen often". It dosen't happen at all.
Not going to happen while the world is watching. When the aid ceases, so does the attention. If Haitians want change, now would be the time to do it because you know darned well if some other nation makes changes, the whiners will be out in full voice.