A trillion dollars is roughly two years of the entire Russian national exports, and I don’t think he has the capacity to pocket 10% of the total exports every year for the last twenty.
The corruption needed to enable that level of loss would imply other people having the opportunity, and I expect competition between different corrupt officials would limit any one person.
Perhaps I’m wrong — I’m not knowledgeable, this is just based on what feels like a plausible upper level to me.
Naturally, but the other estimates I’ve seen — even recently — put him between 70 and 274 billion. A quarter to a 14th of what you’re suggesting. While anything over about 2 billion is uncountable in a human lifetime, the lower number does not feel entirely unbelievable, in the way a trillion does.
Imagine if his assets outside Russia could be identified. Trump's fascination with Putin is not idle; he has a nose for money.