I'm not totally sure what you are saying...

Yes, physical access is one level but it happens all the time when someone steals a laptop or a desktop. This is why, where I work, for users that have laptops and handle confidential information, the hard drives are encrypted.
So they are secure if someone steals them.
As time goes on, we're going to switch to a more robust enterprise encryption, which will allow computers to be managed easier, at which point more computers will be encrypted.