Wilhelm Krelle (1916-2004) had two careers; one before 1945 as an officer in the German Army (Wehrmacht), and a second after 1945 as an economist in West Germany. After retirement, he was honored as the economist who brought modern modeling techniques, Lawrence Klein’s macro-econometrics in particular, from the U.S. to West Germany. After his engagement in the reform of East German economics, however, his person was discredited as his early career became public. This essay reconstructs Krelle’s career in his attempt and struggle to maintain moral integrity in and between the various domains of his troubled life as officer, economist, political adviser, father, and husband.