russians outside of russia likely had wealth allowing them to leave which likely means they are associated with the corruption relatively high up.
Plenty of them are middle class or lower. It’s not that hard for a Russian citizen to get a work visa in the the EU.
And while half of them understand they are in the EU because Putin’s ideology made Russia a shithole, despite having all the means to be a developed country, the other half suffers from a terminal case of cognitive dissonance.