"The rich are different from you and me," wrote Fitzgerald and I suppose they are, but the differences – they wax and wane with the economic tides. Gilded ages come, go, and are reborn on the monsoon cloudbursts of seemingly intangible forces such as globalization, innovation, and favorable tax policy. For the rich to be truly rich and multiply their numbers, they need help. Adept surfers they may be, but like all riders, the wealthy need a seventh wave that allows them to preen their skills and declare themselves masters of their own universe, if only for a moment in...