Definitely they were not as culpable as the guys in unit 731 (Hell even Hitler was probably less sick than those guys). But their involvement (they used slave

Definitely they were not as culpable as the guys in unit 731 (Hell even Hitler was probably less sick than those guys). But their involvement (they used slave labour with people possibly tortured or worked to death) was strong enough for some of them (especially higher ups) to be put to trial.