My company worked hard to create a warm and fuzzy corporate image. They spent a LOT on PR. I think the company was reasonably ethical, considering, but individuals within the company often were not, and I suspect that is common.
I was directly involved in one such PR project, the company said they spent $80 million on it. It related to composting and plastics. The issue, which was never a real issue, magically went away at one point, and so did the project. It was an interesting project technically, I had some neat ideas, but the reality was we were pissing up a rope.
That was $80 million for nothing but imagery, and the lady VP in charge was promoted.