Yes, a publisher will edit your work. But if your work is impossible to read, due to typos, improper punctuation, spelling errors, etc., then it's highly likely the person(s) who passes along manuscripts from the slush pile for further consideration will just toss yours into the circular file.
After all, when was the last time you thought a male character should only be discussing relationships? When was the last time you thought he shouldn't have a name (unless the character is truly minor, seen for a paragraph or two and no more)? And when was the last time you thought it was okay—barring any specific all-distaff settings like sororities or women's colleges—to not see more than one of them in a piece?
I've often heard that, to succeed, you need to visualize success. But I don't do that. Rather, I visualize failure. And then I do everything in my power to avert and avoid catastrophe.
By working with a three-tiered scene and character system, both you and the writer can focus better. If Betty the Barista is important, then the story really needs to focus on her dark eyes, her jaunty beret, and the rose tattoo on her left shoulder. If she's just seen in passing, then she probably doesn't even need to have a name.