It's a good point indeed. I don't live in a place such as that and the Australian lifestyle is, and has been, completely different which I suppose is where I'm coming from considering I was born and raised, and live, here.
It's quite sad though I think, the scenarios you mention, if people are in those situations - I'm glad I'm not. I'll never go to Shanghai, no desire to, and cities of 30 million plus are not my thing...but I can certainly understand the situations you suggest.