World's Friendliest Countries: A Rigged Survey???

I found this news article on MSNBC. I must say that I am quite sure that this survey doesn't reflect the ground reality of the state of nations across the world. I say this because I have several questions about the survey. The study was conducted with only 3,100 respondents, in a world of 6 billion people, and several million living as expatriates in various countries this number is just too small to be of consideration. Second even among the nations studied the number of respondents differed. For example only 35 respondents were surveyed in Bahrain (ranked 1), while more than 450 people were surveyed in UK.

The media is calling the results surprising, but I call it fixed for one of the two reasons. Either HSBC has some vested interest in promoting Bahrain as a great country for expatriates or someone among the researchers want to aggressively market Universal Healthcare proposed by Obama Administration. Most of the respondents from Bahrain praised the public healthcare system highly.