Understand Jesus' disciples reasoning before asking such a question.
Jesus' disciples were believers of a well known doctrine, referred to as retribution theology. It was believed that if a person was suffering severely, it was retribution from God and that the person was a sinner.
We see this doctrine being disproven to a certain point in
Luke 13:1-5 and
John 9:2-3.
Also understand Elijah's motive. They called him man of God but they did not believe in his God. So they were expressing contempt towards God.
2 Kings 1:9-10 Then the king sent to him a captain of fifty with his fifty. And he went up to him, and behold, he was sitting on the top of the hill. And he said to him, "O man of God, the king says, 'Come down.'" Elijah replied to the captain of fifty, "If I am a man of God, let fire come down from heaven and consume you and your fifty " Then fire came down from heaven and consumed him and his fifty.
It's basically the same thing as
1 Kings 18:20-35. It also brings to mind 2 Kings 2:23-24.
As for your scenario, the unrepentant may or may not be spared, but the God mockers would probably be punished.
But as for your question, it's likely something that requires privileges, elevation. Elijah's status as a man of God may have had something to do with it.