You know the main reason they treated our guys and the Brits so horribly? Because they had absolutely no respect for them. Why? Because they surrendered and to the Japanese, that was weakness and cowardly. They think they should've fought to the last man or killed themselves and die honorably. Honorably? Look how many Japs uselessly died and never saw home again because of honor.
I see what your saying but these atrocities were happening while the war was going on... there was no dishonor yet since they hadn't surrendered yet, but they were getting their butts kicked all over the Pacific. Once the war was over they just abandoned the camps and left our people to die or starve that's why we had to do a massive search for the camps because we knew the Japs abandoned all prisoners. They didn't even have respect for themselves, committing suicide was some sort of twisted honor to them.