But I'm not sure the focus on corporations is all that interesting here. The Allies eventually let most of the senior Nazi leadership walk free, and few in Germany faced any lasting consequences for what they did during the war (even IG Farben execs were released before too long). I think the idea was that they needed to govern the nation they have, and mass-imprisonment wasn't a viable strategy. It worked out in a pragmatic sense, but it was hardly justice for the millions of civilians exterminated by the regime.