Adams has become a controversial figure in recent years. Regardless of what you think of him, as someone who has worked in Corporate America for over a decade, there really isn't anything quite like Dilbert to describe the sort of white collar insanity I've had to learn to take in stride. My first workplace as a junior developer was straight out of Dilbert and Office Space. I have a gigantic collection of digitized Dilbert strips that best describe office situations I've run into in real life – many of them including the pointy haired boss.
He's expressed a lot of what I would consider... stupid opinions these days, but I would be sad to learn he's no longer with us.
Probably also because, like e.g. "Yes (Prime) Minister", part of the depicted did come from anecdotes, instead of fantasy.
He spoke at MIT (early 90s?) and I remember him talking about making fun of PacBell colleagues in his comic: They would recognize themselves, ask him to autograph the comic for them, and then go away happy (thus making fun of them a second time.)