That picture is a much better visual representative of the zero-sum fallacy. It is the idea that the amount of wealth in the world is fixed and that theprosperity of the industrialized world comes directly at the expense of those in the developing world.
The developed world has done things that have hurt the developing world. The developed world has more recently done some things to help the developing world.Ultimately the main cause of the developing world's poverty is its general lack of rule of law; property rights; broken financial systems and a lack oftransparency in government, which means that government money does not go to health, education and infrastructure projects that would increase economicdevelopment and standards of living.
Right now the world has a very unequal distribution of wealth and it largely because the developed nations create much more wealth per capita than does the nondeveloped world.
Hopefully, governments will reform and begin to respect rule of law, property rights and their obligation to provide crucial public goods and public services.In addition, micro-finance has provided hope by getting much needed wealth into the hands of poor people so they can begin the process of serious economicdevelopment.
These things and not guilt on the part of Westerns is what will lift billions of out of poverty.