GNOME != Fedora

Many if not most of the hardware access that is appropriate for a local console user, to network, audio, and storage devices is not appropriate for remote users. The OP was asking why they couldn't change local device settings when logged in remotely. There are certainly cases where we want to send a notice to all logged in users but for many of the desktop notifications related to local hardware you probably don't want to broadcast them to all users and you probably don't want all users to have automatically privileged read/write access when plugging in a removable drive for example. It's a much simpler default policy to just draw a line between local console users and remote.