George Bernard Shaw said (many things but he said this)

The  Golden Rule   is that there are no golden rules.

However if you want to write "Country" (or Western) it won't "feel" Country if it doesn't have a few of the ingredients. Like "She dun left me" eg.

Why was the song written? If it was itching to come out and that was the scratch then it serves its purpose. If it was to earn money then the criteria are defined by the genre. But then if all you want is a meal ticket try the wheeze from "How to be a Successful Songwriter" put forward by 50% of the contributors. Take a song, re-write the lyrics, and then re-write the tune. Neil Sedaka wrote one chapter, and his early songs looked like he did just that.
Of course your skill as a wordsmith has to be paramount, and your tunesmithing needs to match for it to stand out, but don't knock it, it pays.