It's not like he's convincing people that the rapture is coming. He's not responsible for their delusion (always assuming that they are deluded.) You can blame their church for that. He's providing a service, it's just not the one they think he's providing. Even if his own motives are cynical, he's at least giving them some peace of mind.
Exactly. And he seems to be taking his clients seriously -- to the extent of actually arranging for someone to be able to pick up their pets if the Rapture does occur.