It is much, much more than that, but I can't prove it to you.Do you know anyone of credibility that denies Jesus's existence? Not his status as son of God, just his existence? I'm guessing not.
Now, this guy was out there. Maybe (just maybe, mind you) the Bible embelishes a little bit on the stories. Even so, this isn't the Canterbury Tales, this is a group of stories about a guy who really existed. And, they've lasted for two millenium. Do you think anyone will have any clue who Abe Lincoln is, or Pastor Wright
two thousand years from now? Maybe some geek historian who combed through the ruble of what was America and found an old text book or, God forbid, a TV commercial for a sleep product. But, there's barely a person on the planet (I didn't say no one, I said very few people with respect to the whole world population) who don't at least know who Jesus is. And, this is a real guy.
That's how it's different than Prometheus. You seem a very smart person, I don't think I need to fill in the dots for what that means.