'Rational' and 'personal gain' are kind of relative to your worldview. The people running Iran believe that if they launch a missile into Tel Aviv, the worst thing that can happen is they get sent to paradise for eternity and Allah is waiting to give them a high-five for wiping Israel off the map. Is it still 'irrational' for them to do so?
The people running Iran believe that if they launch a missile into Tel Aviv, the worst thing that can happen is they get sent to paradise for eternity and Allah is waiting to give them a high-five for wiping Israel off the map.