I worked help desk in my university's computer labs for several years, and got consistently good reviews. When I fixed someone's problem, I made a point of explaining what I was doing as I went. I wasn't just pretending to be polite; I really do enjoy helping people to get a better understanding of their world. Sure, it's obvious to me that you need to empty the recycle bin before the space is really freed up, or that saving a shortcut to a file won't let you access the original from another computer. I'm sure my users know any number of "obvious" facts about math or architecture or medicine that would've left me dumbfounded. What right do I have to claim that my domain of knowledge is more important? If I'm pleasant and helpful and educational, then the student can solve their own problem the next time and my job is easier.

I'm pretty sure I was the only person in the entire campus-wide computer lab system who felt that way. Sometimes students held on to complex problems until my next shift because they knew I was the only one who would actually explain the problem. Techs all over the world seem to treat clients as unteachable idiot annoyances to be shuffled through as quickly as possible, so they can get back to what's really important: complaining on the internet about how nobody understands computers.