Albert Speer should have been executed. He was imprisoned at Spandau 1947-1966. Speer died in 1981.
Either Speer was the greatest conman ever, or more likely, I think they wanted to let one member of Hitler's inner circle to live to tell the tale, and Speer was the "lucky" one.
Albert Speer was a very clever man. He exhibited enough remorse at Nuremberg to avoid the hangman’s noose, but not so much that it would have been obvious.
After he was released from prison, Speer became a celebrity of sorts. He gave many interviews, including one for Playboy magazine. Speer was the good Nazi, the unaware Nazi.
I’m thinking that the many slave laborers he oversaw would disagree with that.
He was the only one in Hitler's inner circle who plead guilty. A Jew testified on his behalf, the only such case for the inner circle.
It seems interesting to me that Lt. Speer from the Band of Brothers became the American commander at Spandau. Those two Speers conversed often.