When we were kings...
The days of iron-clad admin control over the minutiae of every application and device in use on an organisation's network are mostly over.
Quite honestly, crap devices and shoddy services on the web have become the toilet paper on our shoes. I once saw a user uploading photos to some crap site, and asked if they read the EULA or the T's&C's? Their response was what are terms and conditions? I guess it was never their data anyway.