First, I don't think there are third-world countries anymore. We grew up with this notion which now is obsolete, IMHO. These are countries with a faster growth rate, actually, because they start from a lower level. And yes, their dominance seems both

• predictable: these people are less interested in ego validation - hence not using Facebook, Twitter, etc - and more in satisfying immediate needs
• in line with @dan philosophical principles about UBI. I don't know if you read any of @dan's articles on these topic, they are really fascinating.