> Having been to Kenya myself and worked with Kenyan developers for several years, most of whom were quite talented, I see absolutely no problem with paying them their value relative to the work being done. I have no problem with high skilled Kenyans making much more than the local average because they have a skill that is in demand all around the world.

We're not talking about developers though, we're talking about people with good enough English and internet connection to be able to tag or flag strings of text and images. That's not highly skilled work even in a country where native English fluency and internet connections aren't as universal as the US. It's just that the cost of living differences mean that the "get paid just enough to make rent" money that unskilled labour is worth in the US is "more than the local doctors" money in Kenya.