Some of them are rich hacks. Which matters more: the praise of your professional peers or of your present and future audience? I'm not saying you can't have both, but some of those hacks have created stories that fill C.S.Lewis's definition of myth: a story that can suffer changes in plot, character, place, and era, and still remain recognizable as the same story.
Put The Phantom of the Opera in ancient Greece, replace opera with the plays and choruses, and it would be the same central story. Replace the congenital deformation with acid scarring, and you have the same central story.
Convince me that Gaston Leroux was not a hack writer. He was a newspaperman, and his stories were sold as serials. And he gave us not only Phantom but The Mystery of the Yellow Room, a classic of mystery/detective fiction.
Know the rules, yes. But know when they can be broken to gain something else. Be not afraid to boldly split the infinitive, if it will take you where no story has gone before.
If Gaston Leroux doesn't convince you, what about Damon Runyon?