I think describing the value as "very close to 0" distorts things somewhat. The global extreme poverty line is $2.15 per person per day. If someone earns 10x t

I think describing the value as "very close to 0" distorts things somewhat. The global extreme poverty line is $2.15 per person per day. If someone earns 10x that in a poor country, it may be enough to feed yourself and even send your kids to school. There's lots of room near $0. Then hopefully middle class can be generated in a poor country by modernisation and education.