I think you're right, but it's more a tragic case of Trump being actually narcissistic.

He's reacting to the Epstein case as if it's entirely about himself, so he says it's a "hoax" because Trump had nothing to do with Epstein - his involvement is old news, nothing to see, move on. The thought of kids being tortured or criminal sickos roaming free doesn't weigh on him like a normal person.

People have always posited the idea that Trump is trying to make America great just as a side-effect of being excessively self-centered; have a wildly successful Presidency, turn the country around, and he's lionized forever.

I think this Epstain is pretty compelling evidence of the narcissism theory, that he's only helping America incidentally to make himself look good.