Earlier quoted context omitted.
I went to school with a young kazak person I don't want to reveal to much about them, but let me just say this. Their parents had direct contact to the state and they were unaccountably rich went to an insanely expensive private school and owned various apartments all across Europe. The west DOES benefit from the corruption related to those states.
A couple of rich oligarchs playing around with their money in the west doesn't benefit the western economy much. The money they spend is nothing compared to the economies of those western countries. The ones who benefit from the corruption are the ones who have access to the tax stream.
Same was happening in Russia in 90s: western corporation took control of all Russia's natural resources using phony agreements and corrupt businessmen (like Mikhail Khodorkovsky). E.g. in 90s people in Russia were dying of hunger, but oil was sold to the West by the price of water.
When Putin came to power, first thing he had done is returning control over natural resources. That's exactly the moment when all the West started vilifying him so badly.