There is an unwritten social rule now that you can harangue the wealthy to give money away, but you mustn't ask how the money was made. There are no galas celebrating the money people knew better than to seek. Charity begins after profit.

In an economy increasingly dominated by network effects, peer-to-peer transactions, self-regulation, and contract labor, the old frameworks are woefully irrelevant.

As a teenager growing up in the suburbs of Washington, I ritually watched the Sunday-morning political talk shows with my family. We parsed and argued and jeered at the screen as national figures delivered careful, poll-tested talking points.

Right after college, after growing up in the United States, I moved to India, broadly telling the story of how an old and stagnant country was suddenly waking up. And I came home, back to America, in 2009 after telling that story and writing a book about that.

Wealth plays out in the political sphere in all kinds of ways, often personally. Can Hillary Clinton represent the interests of working people when she and her husband have taken so much money from Wall Street? Was Mitt Romney's private-equity business too ruthless with workers?