Realistically, nobody who has managed to reach Putin’s level is going to walk away. You’ve been plotting 24/7/365 since forever; quitting is not an option.
In the scenario you post the only thing one can do is to make a one time deposit of $100 million to a Swiss bank account, and then ask the security detail to escort one to the US embassy [the idea is that I am myself, just somehow in Putin’s office].
Once at the Embassy I claim to have no idea how I ended up in the Kremlin.
So many people on the Left ignore basic nuts and bolts politics and waste time, energy and votes on Utopian nonsense that most voters have never heard of.
Then, when someone like AOC comes along and actually makes effective changes in the Democratic Party, these Left folk attack her for not setting herself on fire.