We have no idea what possible oligarch connections his wife may have in Russia. This may have been a simple decision to join the family business...
The Russian-born wife angle does sort of undermine the ideological aspects of the decision.
My wife moved to Tennessee with me cause that’s where I was born, but she didn’t undertake any ideological gymnastics in explaining her decision to leave Massachusetts.
Who knows? Doesn’t change the fact that young people are leaving Russia in large numbers. But wish them well.