How exactly does "I know what I'm doing. I'll reset the option when the underlying issue is resolved, and overall it's a great feature for the browser, but I need to have the ability to be responsible for myself." become "train the staff to be blind to security warnings"?
If you know what you're doing, you'd know how to get around this limitation, with the --ignore-certificate-errors option for example. Any knowledgeable front-end or back-end developer would know how to find this out by doing a Google search. As long as you don't train the rest of the staff to do the same, that's fine. Now, why isn't the IT department fixing this security and usability problem?