Wow!! Those are some observations. I agree with most but I think you got the detachment one wrong. 'Wrong' may not be the correct word but I think misunderstood is the correct way of putting it.
I think it does benefits the person but in a way only he can enjoy or understand. My understanding is when someone is detached from all, he /she is simply on a a higher dimension not physically but mentally. And the understanding of world and interaction changes.
I think words are very tricky here. We may be talking about the same thing but in different ways. It’s hard to tell. Life feels a bit like a game to me. Sometimes it’s a fun game and sometimes not. I try to make it fun at least. There are things I want to experience but I feel like whatever will happen will happen and I just can make of that what I will.