So the question just goes down one level .... who owns the instance? It's an important question as it then determines what influence can occur with any instance or any owner or owners of an instance.
Yes, no one can own the English language but the language can only occur because each and everyone of us own the hardware because the hardware is built into our bodies.
A fediverse instance has to be run from some location and by some hardware ... so the question I still wonder about is ... who owns any one instance ... who owns or controls Lemmy.world? who owns and controls lemmy.ca