I'm not sure which point you're trying to make, but I would feel extremely uncomfortable being robbed at gunpoint by a person I knew to be "rich". A rich person has much better odds of getting away with it, or receiving reduced punishment. Also, the rich person has no material need to threaten me at gunpoint, so they have clearly become unhinged and are past the point of rational decision making. A poor person who robs you at gun point just wants your money, they're not actually hoping to shoot people.