It's weird, I put $40K into my currency converter and agree that, in London, that would be the start of middle class. Anything below that, especially for a single income family, would definitely not be middle class. I didn't even get to plugging in your upper income limits because I saw that it would be R429K in South Africa. That is a lot of money. I'd say the majority of people in South Africa earn less than R50K. (Two notes: we were comfortably lower-middle class and the cost of living is not that much lower, especially in cities).
I think this is why discussions about class, earnings and the earnings gap are important. We need to live in a society that cares about whether 90% of our population lives below the breadline.
You comment made me think of Hans Rosling's short TED talk on Global Population (http://www.ted.com/talks/hans_rosling_on_global_population_growth.html) and how it can reigned in through closing that gap.
(no subject)
I think this is why discussions about class, earnings and the earnings gap are important. We need to live in a society that cares about whether 90% of our population lives below the breadline.
(no subject)