Putin did this, too. Russia's oligarchs are, to a one, monsters. When Putin defenestrates a rival - confiscates their fortune and sends them to prison - he acts against a genuinely corrupt criminal and brings some small measure of justice to that criminal's victims. But he only does this to the criminals who don't support *him*:
https://www.npr.org/sections/money/2022/03/29/1088886554/how-putin-conquered-russias-oligarchy
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