In my organization, the problem is the security people, not the marketing people. They're simply not responsive.
Someone on a non-IT team will send a message to someone in IT Security asking a question, checking to see if a procedure is correct, or if it's OK to so something, and the IT person simply won't get back to them in an acceptable timeframe.
I'm not talking about minutes. I'm talking days. I've seen my coworkers' IT Security tickets go unanswered for more than a week.
Yes, securing your big fancy data warehouse is very important. But guess what — hackers don't knock on the front door anymore. They're going through the small cracks that you allow to form when you don't realize that your job is securing the entire organization, not just your silo.
This is why the rest of the company is going around security to get things done. Because if the money doesn't keep flowing, everyone loses their jobs.