From the Annals of WWII Detroit

[cla1945]

Maybe so, but the impetus was to shock and demoralize the population with a right hook, then a left uppercut and force the Emperor to face the possibility of the next one hitting Tokyo directly. Fortunately, Hirohito valued the lives of the Japanese population more than Truman did.

He didn't value anyone's lives.
Under Emperor Hirohito, numerous war crimes were perpetrated by the Imperial Japanese Army and the Imperial Japanese Navy that resulted in the deaths of millions of people. Some historical estimates of the number of deaths which resulted from Japanese war crimes range from 3 to 14 million through massacre, human experimentation, starvation and forced labor that was either directly perpetrated or condoned by the Japanese military and government^. Some Japanese soldiers have admitted to committing these crimes.