I agree, he doesn't seem to have that extra gear (drive, I gotta prove it to somebody etc) that the really special players seem to have. He's got a great life, is consistently in the top 10 in earnings, has extremely lucrative sponsorship deals and is engaged to a 10/10. He seems like he's having a great time - He's a lot more consistent than Charles Howell III, but his popularity with the fans and ability remind me of Chuck a ton when he first got on tour. Howell has had a great career, but he never really reached the levels people thought he'd reach when he first arrived.
Wolff on the other hand, has balls of steel and seems to thrive under pressure. Watching him last two years at OSU, and a few of the pro tournaments he's ready for the pressure today. He's the best college golfer I've ever seen at Okie State, and his Eagle putt Sunday with Dechambeau already in the clubhouse waiting was just a taste of what he's done all year for OSU. He also seems to take EVERYTHING personally and plays with a chip on his shoulder because of his swing. If he doesn't have a meteoric rise up the rankings ala Rory years ago, JT, Spieth a few years back etc I'll be very surprised.