as they are often times admin level or higher.
backup exec accounts are system level, which mean absolute control.

ahh! i might be able to answer my own question here...they could restore the files to a computer they do have access to...is this the case?
or change the backup location, or whats being backed up. From what I read there is more room for destruction than control. It also opens doors to newer exploits (small hole turns to BIG hole if not plugged)