Interesting seen this way.
Word of note though. Salaries are quiet spread out. The people likely to buy new iPhones are likely people earning top 1% of salaries in most countries in Africa.
If this viz is focusing on average salary, then it is a general description and should not be compared to other countries with different income spreads (min-max). It can be quite deceptive. Upper middle class in a place like Kenya or Myanmar live a far more better life overall than say lower middle class folk in the US.
Luddites were not as opposed to new technology as you say it here. They were mainly concerned about what technology would do to whom.
A helpful history right here: https://www.hachettebookgroup.com/titles/brian-merchant/blood-in-the-machine/9780316487740/?lens=little-brown