Most people think that because some designers produce images with a computer, the work is easy and has an endless yield. You can tell them otherwise, but it won't sink in. The concept of photoshopping has become so cheapened that it's value, in certain circles, has been diminished to that of a parlour trick.
90% of my work is drawing and making images. On a computer. I make images that people, not long ago, could only make by hand. And let me tell you what - people in established fields don't respect the computer crafted image. There is a real contempt for it I think. This contempt has trickled up into corporate practices the industry over. Your work on a computer is worthless = YOU are worthless. Add that to the fact that many in advertising find their own business suspect and without a generative core. What you're left with is a toxic brew of cannibalism as a means of base survival.