The real answer?

“We once gave you commoners this power and you used it to fuck your computer up and then blamed us for it, so we learned you can’t be trusted with this power. We hid it behind a kind of skill test, and you’re failing that test.”

As far as I remember the secret is to log in as admin and change the ownership of the files to yourself, then change permissions and then do whatever the f you want with the files.