By definition, you can't deal with these kinds of people. You can't change the mind of someone whose mind is made up. At best, you can wait until they fail and

By definition, you can't deal with these kinds of people. You can't change the mind of someone whose mind is made up. At best, you can wait until they fail and are replaced. However, you'll likely waste a lot of time waiting for that day, and depending on how the organization is structured, it may never happen.