My wife and I have polar opposite backgrounds - I had a small group of supportive friends and family, and she had a group of friends and family that, she came to realize, only wanted her around when they needed something from her.
Unlike you, she didn't cut missy l most of them out completely, but she has been rebuilding those relationships with much healthier boundaries.
It's a work in progress, though, because there's a lot of bad water to get under the bridge, so to speak.
That said, she's happier than she's ever been, and far less stressed.
I’m not saying I disagree. I find the contrast in views really interesting.
On the other hand, individuals with special needs, children and animals are mostly defenseless in this world and actually deserve our attention. I have focused my time and resources on helping them (versus the family and friends "in need") and this has proven to be more fulfilling, and I believe ultimately more selfless than my past self.