That level of insult seemed to work perfectly for Germany and Japan after WW2. Look how polite they are after occupation and giving away half of the country to Russians.
Well, they didn't really give anything away voluntarily.
They lost a war, and got to suffer that as a consequence under postWW2 arrangments (and that was the light option, more like a slap on the wrist: they were also plans to fully deindustrialize and starve them to death https://en.wikipedia.org/wiki/Morgenthau_Plan ).
And they're building up a liking to fascism and national arrogance again in the last few decades. The Japanese too - which never repented for their attrocities to China either.
