Speculation about the reasons for his early release, despite having been considered as a potential criminal defendant for the Nuremberg trials, include the need to restore confidence and order in the German medical profession; his personal and financial connections to prestigious American and British researchers, funding bodies and others; and the fact that he repeatedly cited American eugenic sterilization initiatives to justify his own as legal (indeed the Nuremberg trials carefully avoided highlighting such links in general). Nevertheless, Rüdin has been cited as a more senior and influential architect of Nazi crimes than the physician who was sentenced to death, Karl Brandt, or the infamous Josef Mengele who had attended his lectures and been employed by his Institute.