Putin has a lot of assets (possibly even the most of anyone), but nothing close to the full assets of Russia. Dictators can definitely use their power to enrich

Putin has a lot of assets (possibly even the most of anyone), but nothing close to the full assets of Russia. Dictators can definitely use their power to enrich themselves greatly, but they can't capture the entire country's assets; they need to use a lot of the assets just to keep the country running and to stay in power. The people that help them to stay in power will expect to get something out of it for themselves. It's kind of like how you wouldn't count the shares of Microsoft that Gates gave away to early employees as part of Gates's assets even though Gates was effectively the dictator of Microsoft.