I’m sure he won’t mind. Worrying about that doesn’t sound like working.
I work from the moment I wake up to the moment I go to bed. I work seven days a week. When I'm not working, I'm thinking about working, and when I'm working, I'm working. I sit through movies, but I don't remember them because I'm thinking about work.
ETA: Replace "work" in that quote with practically any other activity/subject, whether outlandish or banal.
I sit through movies but I don't remember them because I'm thinking about baking cakes.
I sit through movies but I don't remember them because I'm thinking about traffic patterns.
I sit through movies but I don't remember them because I'm thinking about cannibalism.
I sit through movies but I don't remember them because I'm thinking about shitposting.
Obsessed with something? At best, you're "quirky" (depending on what you're obsessed with). Unless it's money. Being obsessed with that is somehow virtuous.
I don't think you become the best tech CEO in the world by having a healthy approach to work. He is just wired differently, some people are just all about work.