"Empathy" is a pre-requisite for nearly all the traits we'd regard as "character and integrity," and Elon has vocally and specifically spoken out against the concept of empathy itself. Then he has behaved as if he had a total lack of empathy as well. He's achieved some great things, but all of them can be explained by low-character/low-integrity traits like greed and narcissism. Not one thing I've ever heard of him doing invokes an explanation of, and therefore produces evidence of, character and integrity.