In some sense the thesis of the article makes intuitive sense. How can the banking sector really have much of a margin since they are dealing with the ultimate

In some sense the thesis of the article makes intuitive sense. How can the banking sector really have much of a margin since they are dealing with the ultimate commodity product, money! Trading is a zero sum game, all the banks can't make a profit doing it. Banks provide quasi governmental services to society, so one could make an argument that they should be subsided in some way, or that they have to be subsided! Their role in the economy is too fundamental to not have. I've come across arguments that banks should just be turned in to utilities. http://www.nakedcapitalism.com/2011/08/should-banks-be-public-utilities.html http://www.nakedcapitalism.com/2011/08/should-banks-be-publi...