Koch emphasized rugged pursuits, taking his sons big-game hunting in Africa, and requiring them to do farm labor at the family ranch. The Kochs lived in a stone mansion on a large compound across from Wichita’s country club; in the summer, the boys could hear their friends splashing in the pool, but they were not allowed to join them. “By instilling a work ethic in me at an early age, my father did me a big favor, although it didn’t seem like a favor back then,” Charles has written. “By the time I was eight, he made sure work occupied most of my spare time.” David Koch recalled that his father also indoctrinated the boys politically. “He was constantly speaking to us children about what was wrong with government,” he told Brian Doherty, an editor of the libertarian magazine Reason, and the author of “Radicals for Capitalism,” a 2007 history of the libertarian movement.

Of course, change didn't happen overnight. But the marginal cases did have children out of wedlock, which made it more acceptable for the next marginal case to do so. Meanwhile, women who wanted to get married essentially found themselves in competition for young men with women who were willing to have sex, and bear children, without forcing the men to take any responsibility. This is a pretty attractive proposition for most young men. So despite the fact that the sixties brought us the biggest advance in birth control ever, illegitimacy exploded. In the early 1960s, a black illegitimacy rate of roughly 25 percent caused Daniel Patrick Moynihan to write a tract warning of a crisis in "the negro family" (a tract for which he was eviscerated by many of those selfsame activists.)

By 1990, that rate was over 70 percent. This, despite the fact that the inner city, where the illegitimacy problem was biggest, only accounts for a fraction of the black population.