I have personally rejected a candidate that claims to know professional security tools but maintains that it is not his job to filter out false positives ("because they don't exist") before presenting the results to the developer team. The same candidate would also say "you need a firewall" but would not be able, in an interview setting, to explain how to protect the database server using a firewall - i.e., what exactly to allow.
Yes, unfortunately any kind of staff position that does not deliver product attracts these types who just want to hide and never be accountable for delivering value to the business. I'm not saying the positions aren't needed or valuable, but just that it is appealing to the wrong kind of people.
And unfortunately, their value is often directly proportional to the amount of workload they add to the productive segments. People wonder why security teams are the first to be cut during hard times, but this is basically why. That said, I can see both sides of it, security is obviously of great importance. But there just has to be a better way, perhaps some categorization of threat models cross referenced against the CVEs/etc.