I remember a different (I believe also Jacobin) article on this book a while ago. It focused less on the postwar trials, but more about "Nazi Billionaires" in general. As a title, it is poignant and all, but as a concept it annoys me, because most of these families and companies already were rich. Quite a few were Monarchist Millionaires and rich families have a good shot at staying rich. Obviously many of them arranged themselves and with the regime and exploited the opportunities the Holocaust and the war created for them, ruthlessly and immorally. And I am sure most of them found Nazi ideology very agreeable, or at least easy enough to go along with.