I haven’t, I will check this out. Thanks!

I think Charles Taylor’s Sources of the Self was probably on my mind subconsciously when I wrote the comment. It’s also a great book about the formation of individualism.

Edit: replying to your long edit, absolutely, it seems like a factor that is relevant in every biological system: which “level” of identity acquires more resources or is otherwise more impactful in controlling the organism’s decision making.