The reason they don't have conventions in places in Haiti, Malawi, or Zimbabwe is the simple fact of the matter of the contribution box. Since locals would undoubtedly make up the bulk of the delegates, the donations are going to be well off the mark, and in currency which is not easily convertible into money the Society could actually use. What use do they have for Haitian Gourdes? The best use they could have for it would be to keep it within the country, and they don't want to do that. Also the conventions would likely lose money since the literature is now free, and the donations gathered would probably barely even cover the cost of printing.
It makes more sense for the Society to set up a donation fund to transport Haitians to a convention in France where they can conveniently show a group of smiling black faces listening in Creole while putting the picture in their yearbook.
