It matters because one is a physical object with static properties and the other is a digital abstraction with characteristics that can change arbitrarily based on network consensus. One is fundamentally a thing that can be looked at and held, the other isn't even a thing you can know you have without consulting a quorum of nodes about the status of the ledger (for all you know, you don't actually own any tokens because an attacker has stolen them)
But what does that matter in a world where people spend numbers on a bank account, never questioning if the money is actually there or not? I fear you are putting too much emphasis on physical things, as if the quality of being "able to be touched" somehow matters in the modern world.
