My friend Roz Morris had a piece about the mistreatment of authors on her blog. Peter Ginna of Bloomsbury Press responded. Roz has many examples. Peter is one of the good guys. It’s all laid out in the links in the article.
My own experience is that loathing of authors was usually kept to individuals on a case-by-case basis, though for one publisher for whom I worked, that nasty attitude was part of the corporate culture (and as a writer, I was very glad to leave that company.) ~ Chazz