I think the Korean guy was responsible in the way he handled the situation. There's no way I'll ever be rich and not have a second thought about spending 1.4$m on a luxury car. 

In reality, even people who suddenly hit the lottery sometimes can be responsible with how they react to, and manage their "luck" because going back to poverty isn't something anyone should do especially if they manage to get out.
However life can make people extremely stupid, especially when they cannot manage abundance.