Terror kills poor because poor states does not function effectively. If they did they were already rich... Americans are trying to make Iraq and Afghanistan function (with not much success). They succeeded in West Germany and Japan. But again, South Korea did it without any foreign help, so it seems to be up to self organizing skills (and traditions) of a nation, mostly. So the first step should be to make a state function effectively but here we apparently have a conflict of interests. Some rulers do not want their state to be run properly but according to their own will. They are stealing years and decades and centuries of life from their subjects (can't call them citizens), pushing them into poverty, or flee to Europe, America, Australia.
Saudi FM: We hope Iran uses sanction relief for development, not nefarious activities (Reuters)
from the article: Blair to Haaretz: Global terror is one battle, one struggle