I've worked in this industry for a long time, and while I have worked with fantastic self-taught developers from non-tech degrees, it seems to me that they're the exception rather than the rule. I would not hesitate hiring someone without a tech degree based on their experience, but they seem fairly uncommon. Most of the developers I've worked with seem to come from CS/EE backgrounds.
Maciej Ceglowski is, I think, even worse off than I am. He went to art school. Now he controls the Internet from his perch atop Pinboard.