Having worked in a similar position, it can be incredibly hard managing hundreds of computers with different requirements. When one supplier decides that they're not going to support the new OS iteration fast enough, the IT department gets to pick up the slack and everyone hurts.
I see very little proof here beyond that snarky responses beget snarky responses and the system stays broken.
When your day-in-day-out job is to deal with the angriest person in the building, you tend to either have an emotional breakdown or you ice-over, harden up, and learn to bring a healthy level of disdain with you. It's about survival. Trying to actively be everyone's friend gets you beaten pretty badly in the field. You can't give everyone what they want.
Finally, because of policies, you have the be the bad guy. You can't simply choose not to enforce the policies. Someone higher up the chain makes those decisions for one reason or another, and even if they are good decisions for overall policy, there are bound to be problems that arise. Because policy will always be in need of update and will never completely respond to the needs of users, you, the IT monkey, becomes the lightning rod for every ounce of ire that cannot be directed at the policy.
Everyone expects that IT seems to either magically know exactly what's going on at all times, or that they're know-nothing lower primates. The truth is they're working stiffs like anyone else and that their job revolves entirely around dealing with the problems that noone else really wants to touch.
It's janitorial work w/ computers and added stress.
The "100% Accuracy" thing is a bit of a stickler, but there are some fun examples in Social Psychology. I know they're not about being "nudged" but they *are* about influence and susceptibility and there should be many more examples in Social Psychology if you are interested in learning more:
-- Asch's Conformity Study: An individual was asked to rate the length of a line while placed in a group. The subject would answer after 5 other people, who were all instructed to agree on the wrong line. The choice was patently obvious, but a *very* large number caved. Those who did not were highly distressed, over LINES.
--Milgram's Obedience study: proved that the average person would electrocute someone to death if told to by an authority figure.
-- Stanford Prison Experiment: demonstrated that individuals fill the role that they are placed into. Atrocity is easy; standing up for your own values is hard.
All in all, I cannot prove with a causal reliability that you are, indeed, prone to influence. However, I know that I myself feel worried on a day to day basis about being influenced and often am despite my best attempts not to be. Either a.) you are a paragon among men (hats off to you) or b.) you have yet to have your own vulnerability proven to you.
You knew the job was dangerous when you took it, Fred. -- Superchicken