how one sided.
Every hostile IT shop I have ever encountered is always run by insecure, almost talented wanna-be s, who believe they are so good at what they do, no one would ever understand what it is they do.
and 100% of the time so far, they have been completely wrong.
as an old boss of mine said "never believe your own press"
the best IT shops go out of their way to show the rest of the company the value they bring to the company, in terms everyone understands, and can respect. The one thing these shops have in common is an understanding that what they do is just as an important as what others in the company do, and take an active interest in understanding what it is the COMPANY does.
In other words, IT is one of a very few professions where you can be an insecure ass, and still keep a job.
So, keep feeding your sense of entitlement. Keep feeling like IT is the most important thing in your company. I promise you, unless your company makes 'it expertise", you are just overhead to the real job being done there.
and it may be painful to replace you, but the smarter managers are learning, they don't have to put up with your attitude to get your so-called expertise, when there are plenty of more well adjusted people out there to take your place.