As far as i am aware, permissions are at the heart of a linux system already! the superuser has full access to everything, everywhere, always.
regular user accounts are often severely restricted as to what they can do. Even though an option shows up on the control panels in rh9 (kde), you will still need an administrator password to access any of these programs.
not having anything show up at all is possible, i suppose, but why? if they have your root password already, they are going to get in. if they dont, then (assuming you used a good password for your root account) they can guess till their eyes bleed, and it probably won't help them.