I’m in the middle of migrating from WGM to Apple’s MDM/Profile Manager. I was baffled to find that the simple checkbox to disable Wifi and Internet Sharing was missing. When your organization has a bunch of imacs in labs you do not want someone connecting the wifi to a hotspot to bypass your LAN.
So to solve this you have to do it in the “Custom Settings” section.
Add a preference called: com.apple.MCXAirPort with a value of DisableAirPort, Boolean and check it off.
To disable Internet Sharing add another one…
com.apple.MCX, value of: forceInternetSharingOff, boolean, checked.