If you've ever been a system administrator for any length of time, the volume of random (non approved) stuff that endusers manage to install on their machines is frankly staggering.
No. If you can't install the apps you need to do your work, then the system admin needs to be replaced. If you can't figure out what software is safe to install, you need to be replaced.
For the majority of the world it's actually: If you won't use the tools which were prescribed in your contract, there are plenty of people who are willing to replace you.
