I don't think these things are as different as you think. I started at "ls" and worked down. If you work up, you get things like a "socket", an "object" within a programming language, a "linked list" in a standard library, an "HTTP client" within an application-level package. You can keep going up and rattle off lots of useful abstractions in application-level code.

There are certainly _bad_ abstractions that ought not to exist, which I think is what you're getting at. There are poorly built abstractions, and leaky abstractions. But abstraction itself isn't the problem -- abstraction is what allows us to build anything at all without being crushed by the sheer complexity.