Mad Men recap: Solving the mystery of Bob Benson. - Slate Magazine
http://www.slate.com/articles/arts/tv_club/features/2013/mad_men_season_6/week_9/mad_men_recap_solving_the_mystery_of_bob_benson.html
My bet is that the joke is on us, that there is no great reveal. Bob Benson is a way for the writers to show us how, in the world of Mad Men, the very qualities that define a real go-getting American businessman, here, in this office, with these people, look like vile perversion. To propose that Bob Benson is a spy is, frankly, to dance on Dutch Reagan’s grave. If you suspect Bob, you suspect the backbone of American commerce. If you suspect Bob, you suspect opportunity itself.