I don't think it's as clear as that. I want to get good enough to win Dota most of the time, but the global matchmaking means that I only win 50% of games, and enjoy only a percentage of those.
Similarly, for photography, it frustrates me that I can browse the top page on 500px and see thousands of photos per hour that I can never hope to match even once. Still, I do it because I like it. I don't think I've ever done anything just because I want to get good at it, and I've been programming most of the day for 20 years, because it's fun for me.
All in all, there's a spectrum of the metrics you mention, I don't think it's discrete.
Similarly, for photography, it frustrates me that I can browse the top page on 500px and see thousands of photos per hour that I can never hope to match even once. Still, I do it because I like it. I don't think I've ever done anything just because I want to get good at it, and I've been programming most of the day for 20 years, because it's fun for me.
All in all, there's a spectrum of the metrics you mention, I don't think it's discrete.