Executive Meddling that actually made something better or fix it

Few examples come to mind is that the original Spider-Verse event in comics was gonna have Doc Ock as the protagonist but Marvel editors told Dan Scott not to do it as this was a big event and not having Peter involved wouldn't be faithful

Also there's Kishimoto's editors wanting to give Naruto a rival which in turn gave us Sasuke which help the narrative of the series somewhat