Yeah, if he was still alive, he'd be irrelevant now. He was great at what he did - writing for that very narrow genre - but not a superstar in any other way. He was moderately influential, but again, I don't think people would be talking about him much if he were still alive. He died at his peak, so it's easy to postulate that his career would have continued like that, but, let's face it, that's incredibly unlikely.
He wrote pretty good songs. He was decently talented. He died young, and riding the wave of success. I think it's time to move on.
But, that's just my opinion.