A publisher once told me an editor's job is to help the writer ensure that what the writer wanted to say was said...or something to that effect. In other words, editors help the writer get their message out, the way the writer envisioned it...only better.
I kinda like that. It's not the editor's job to change the story, just make it clearer for the reader.
So, here's to all the editors out there. Thanks for all you do for us writers.