On the occasion of some obscure Playboy anniversary in the late 20th Century, Playboy representatives approached Mike Royko, a Chicago newspaper columnist, to interview Hef.   Royko declined on the basis that Hef was boring and skewered Hef in a column explaining why he had turned Hef down.  
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In Royko's view, Hef was boring because he only talked about two things:
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How Hef had single handedly inspired the sexual revolution with his sophomoric "Playboy Philosophy: and
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The number of women Hef had had sex with.
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Royko ridiculed Hef's contribution to the sexual revolution, attributing it to the anonymous scientist toiling in obscurity in a research lab who had invented the Pill.  As far as Hef's record of sexual conquests, Royko considered it sub-par for a multi-millionaire  while jeering that Onassis had wed Jackie; but Hef's most notable conquest was the now long forgotten Barbi Benton.