A blueprint?
You own the paper it's made of, regardless of what's written on it.
A music composition?
You own the medium that it's recorded on, regardless if that medium has any data on it.
A book?
You own the paper it's made of, regardless of what's written on it.
So again, if you manage to photograph my blueprint and build whatever is drawn there, that's perfectly OK?
If I manage to copy your wallet file, the bitcoins are mine? And that's OK?