HAHAHA - spoken like the guy not responsible for cleaning up other people's messes and securing mission critical or personal data.
Users choosing their own level of security is why (probably) more than 70% of GeekSquad work is wiping hard drives due to malware.
In the real world of business, it is the sysadmins job to provide the resources to get the job done and keep data safe. That's it. Getting the job done does not include YouTube, Facebook, or Solitare (yes, there are cases where social media is required) You want that - do it at home.
Work is called that for a reason. Hopefully you are fortunate enough to enjoy the work that you do, making it seem less like work, but work it is and shall be and sucks to the whiners.
Decide to let the marketing team decide their own security - a task for which they have neither the training, time, or inclination to do, and now nobody can access anything because the network is overrun with malware.
Businesses run on specialization. Embrace that fact and let people ruin their own equipment. Not the company's.