The Torah says that Jews are able to charge interest to everyone except for other Jews, maybe that has something to do with it, religious justification? Usury (charging interest on loans) was considered a sin all throughout the money using world until rather recently in human history, sometimes the act was punishable by death. Now its the main focus of every financial establishment on earth.
I have a big problem with the banking system and the money system in general. From the banks we go to (Chase, etc) to the Federal Reserve to the World Bank and IMF. Its all corrupt as hell.