I can live a happy life without struggling for basic needs and without playing golf all day long. If you strip off every obligation from life, then you exist, not live.
Facing challenges and overcoming obstacles, friends and family is what makes me happy. When you’re rich, most people only care about your money, not the person you are. And I think that’s exactly what a happy life is about.
I can imagine I could be perfectly happy with a life full of challenges of that kind, instead of being forced to work at given scheduled times which often imply I spend less time with my son than I would like, including days I don't feel like it, and including boring tasks (I love my job, but like almost every job, it also has its paperwork, pointless meetings, etc.), knowing I depend on that work to live.
In short, I think we all do need the challenge, the struggle, the successes and the failures, otherwise life would just be boring and pointless. But I don't think we (or at least I) need the obligation component and the high stakes.
What you mention about the rich attracting people focused on money rings true, but it would be moot if AI led us all to lead lives more similar to the rich, which was the point here. (Of course, there's also the issue of whether there is widespread or unequal access to AI, but that's another story...).