It basically allowed us to avoid dividing Japan with the Soviets like it happened in Germany. Was very economical in Russian lives too.
This is not withstanding the dastardly unit731, which, had we known about it, would have given immediate attention to developing and using nukes on Japan.
There’s a recent book which picks up the Japanese development of nuclear weapons, and there’s strong speculation that if they’d waited another six months...they would have had enough nuke material for a couple of weapons and drastically changed the war.
One aspect that the book pointed out....the Navy and the Army weren’t sharing technology, and both had their own developmental programs going on.
A major and often overlooked reason to force an end to the war. That and the fact that the Japs were willing to all die and take us with them sealed the deal.
I have read extensively about WWII all my life. The enemies in Europe were seen and (generally) treated as reasonable combatants.
In the Pacific the Japs were viewed like cockroaches who could only be subdued by killing the lot. There was no reasoning with them and the mentality that they would die to serve their emperor was totally alien. Starting Leyte Gulf and suicide fliers which terrified our Navy I think the die was cast to end the war no matter how. Just my 2¢