It's not as if there's only one way to et into an unsafe culture: I have seen situations where people were intimidated by using abusive, aggressive behavior, and others where the same things were accomplished through smiles and backstabbing.
If you are leading a startup and you don't see dissent in your organization, beware, because what it means is that it's been forced to go underground.
So yes, we should learn from imperial japan that every organization needs ways for people to safely and politely express unpopular, honest opinions.
A war that need not have been fought was about to be
fought because of mutual misunderstanding, language
difficulties, and mistranslations.
Why did America drop the two bombs? Why did it not drop the first one over the Tokyo bay? Why Japanese leaders hesitated so much to surrender, despite being so much overwhelmed by foreign power? Why nobody managed to stop Hitler from inside Germany? Why all the genocides in the history had to happen?
The world is complicated, it does not always choose the right path. Decisions of even the greatest importance are sometimes made with insufficient information, and are subject to all kinds of cognitive failures. It's easy to judge after you know all the facts.
The US made ultimatum without a specific deadline. The hawkish press spoke in behalf of the government, but without authority. The US continued its plan to attack until surrender was communicated. No doubt powerful in US govt wanted to see what the bomb could do. Dropping two a-bombs in a week wasn't an accidental race condition against communication lines. The US leadership had two bombs and wanted to use them.
that's why the bombs and that's why the target were mid sized cities.
https://en.wikipedia.org/wiki/Debate_over_the_atomic_bombing...
especially source http://www.nytimes.com/2003/08/05/opinion/blood-on-our-hands...
''We of the peace party were assisted by the atomic bomb in our endeavor to end the war,'' Koichi Kido, one of Emperor Hirohito's closest aides, said later.''
The targets were mid-sized cities because by the time the target planning started, Kyoto was the only big one the B-29s hadn't burned to the ground (well, the important parts; I forget when, but we'd given up on Tokyo after destroying 17 square miles or so), and Secretary of War Stimson, who'd visited it and Japan in general, removed it from the list, despite Groves imploring him many times to not. That was wise, if for no other reason that it strengthened the Emperor's hand when he was finally in a position to end the war, for a long time Kyoto was the Emperor's city, Tokyo the military's.
And as I noted elsewhere, a culture of acceptable political assassination was well established by then, so e.g. being too strongly anti-war would only get you killed.
That's one thing you do learn from history. You'll win this one if you have the technology and your opponent does not. Otherwise you lose. The next war, you'll both have the technology.
In 1935 USSR was pioneer in monoplane fighters with retractable undercarriage. They we're two or three years ahead of anybody else, and the Russians had them in relatively large quantity.
https://en.wikipedia.org/wiki/Polikarpov_I-16
Problem was that they didn't know it was relevant. When war started they still mostly relied on biplanes. And only got the development rolling again in 1940 with MIGs and they could not compete with Nazis in the sky on even terms until 1943.
Japanese had total miss with Yamamoto class ships. Germany didn't invest enough in submarines and their tanks we're way too fancy for field repairs. Nobody understood how important submachine guns would be. Brits had some major naval defects, exposed by explosion of HMS Hood and problems with guns of King George V battleships. France and U.S. fucked up tank development. U.S. made thuderbolts, which we're about twice as costly and difficult to built than what was necessary.
It's complete hit and miss. Currently U.S. has global military hegemony because they can afford to miss more than anybody else. Also logistics. If you are committed to get more stuff to the front than the enemy, you can compensate quite lot.
But sometimes the smallest of things derails you. The scientists' saving throw for a real program failed when the bigwigs Nazis were invited to a seminar, but the secretary sending out the invitations accidentally included in the packets the agenda for a different and very technical seminar they'd have no interest in.