1) People in the world should be equal in the term of the financial status because they always read the same newspaper, receive the same informtion with a very short time period due to the Social Network. This is because most of the countries in the world tend to be democracy and the On Line Society.
2) In reality, it is not the same and this is the reason why Warren Buffett always said " In case the Market is efficient, I would become a beggar "
3) For example, in the subprime crisis in 2008, 99.99% of the US Citizen though that the Alan Green Span's Policy to keep the Fed Fund Rate stay low for quite a long time was right while 0.01% of the US Citizen such as Jim Rogers, John Paulson and etc. though that it was the wrong policy.
4) The 99.99% and the 0.01% had bet against each other and finally the 0.01% won because of the Subprime Crisis in 2008 and a lot of money in the 99.99%'s poctkets had been transfered to the 0.01%'s pockets automatically.
5) This is the reason why a lot of people in the world are very poor why a few people are very rich.