So to generalise their policy, it is: if(theirMoney > myMoney) {stealMoney()}
The problem is, you’ll very quickly run out of money to steal. A billion dollars over an entire country is a few dollars each. And you’ve just shot a billionaire in their house in order to get that tiny amount of money. You’re going to have to run extermination camps just to milk out enough for people to buy a new car. And then what do you do next year? You’ve already liquidated everyone. Everyone has spent their money. Now they want more. Expand the programme? Liquidate the doctors?