Yeah but there was a difference between the German people and the Nazi hierarchy if you remember the population was forced to tour the concentration camps to see exactly what had happened.
The Japanese on the other hand were fanatical they were jumping off of cliffs rather than face surrender to the Americans the only thing that could force it on them was true shock and awe with the A bombs.
The original Godzilla movie was an attempt for them to get their heads around what had happened a lot of the footage in that movie is actual radiation victims after the bombing.