Wow, you reiterate my view that fiction can teach a lesson, then pretend that that isn't what I said, and then pretend that you are correcting me when you are just repeating what I said.
Me telling what I believe based on what the Bible says, is me disagreeing with you, not trying to correct you.
However, I like that you compare Leviathan to a dinosaur. Bill Cooper the creationist has made a good case that when early literature speaks of "dragons" it is really speaking of dinosaurs.
He is not the only one. Many good theologians have made the same comparison. Leviathan was some kind of a creature, a dino is as good a guess as any.
Bill Cooper claims the first settlers of Ireland had to exterminate t-Rex and teradactyls before they could settle there.
Take Will Rogers advice---Don't believe anything you read and only half of what you see.
But can you forget whether there was a literal Leviathan, and get to the deeper meaning of why he is mentioned in book of Job?
That's right. Why do you think he is mentioned?