The Boston-bred Birkenfeld was a banker for UBS, a Swiss financial behemoth with major US operations. His specialty: devising tax shelters in the form of offshore shell companies and peddling them to the superrich. .... Those with the most money get the best houses, medical care, vacations, wives, parties, food, lawyers, and the most respect and political access to perpetuate their power. The wealthy may not be the happiest people, but their limitless greed certainly ...