I think what you describe is less Western and more upper-class. Everywhere. Every time. Now it has a Western culture everywhere, but that's only a surface.

And plunderers were from everywhere, not just the West. We can go back to the Moghuls, to Ghenghis Khan, to the Warring States of China, to the Assyrians and the Hettites, it's there.

_{*Lunatic*, n.
One whose delusions are out of fashion.}