You clearly have never lived abroad. Money goes further.
I once lived in Cuba, for an internship. I had housing and food provided by my employer, they paid the family $800. I had $500 spending money on top of that.
I lived like a KING. I've never been that rich in my life. People made my food, cleaning my room, cooked for me, did my laundry.
Many thing that I wanted to buy could be had for a fraction of the price. I'm led to understand that this applies across the developing world.
In particular, you can hire PEOPLE for a fraction of the cost you can get interpersonal services here. This has an incredible impact on your real standard of living.
According to Wikpiedia, bottom 10% maxes out at 10,500 in America.
That is POOR, assuming you don't have health care or housing provided.
I couldn't find reliable figures for China, India, Brazil or other countries, but I'm very certain I'd rather be in the top 10% of those countries than the bottom 10% of America.
Anyone have figures for those countries, or experiences being 'well-off' in a poor country?