That is not necessarily a negative thing, but with it comes the plague of poor communication. Geeks are reclusive by nature and have spent much of their lives in front of a computer becoming better programmers or 3D artists. That means that some individuals' communication skills of may be lacking. I have worked with some outstanding people, every one of them nice, though a few of them have been a little tough to read due to poor social development. Making another person feel as though they are saving you from a great struggle can go a long way.
People like to be heroes.
Our industry proceeds with a lot of trial and error. Each and every one of us has done something stupid either because we forgot a step or were ignorant of the consequence of doing something a certain way. Unfortunately the programmer neglects to tell the artists that the code requires textures to be mapped a specific way. Artist A exports his model with some intricate texture mapping that took him a day and a half to complete. The lead artist and art director happen to walk by as the artist is reviewing his work in the test level and the mapping information on the model has been scrambled.