My mom has quite severe hearing loss but is not totally deaf. She uses TV captioning and generally can’t tell whether the TV sound is on or off. I generally want it to be off because it is annoying, so when she leaves it on by accident, I just shut it off and she doesn’t notice or anyway doesn’t care.
It seems more important to ensure Larry Ellison’s good behaviour than Joe Schmoe’s. Ellison is able to be far more destructive. Maybe some surveillance at Oracle HQ could help.