There’s nothing wrong with that approach. Even though shared universes are prevalent, there’s still a multitude of opportunities in the industry for auteurs to go off and make something that is undeniably their own. As much fun as it is to see Iron Man, Captain America, Superman, and Batman on the big screen, it’s nice that there are directors like Scott, Spielberg, and Bay out there crafting new universes to explore, which in turn keeps film slates fresh. Even if they’re adapting novels (The Martian, Ready Player One), or in Bay’s case, toys, they’re still responsible for figuring out how everything will look on the screen and aren’t following someone else’s lead. For a filmmaker, that aspect is definitely enjoyable and provides them with creative freedom and leeway. And as certain directors have shown, there’s plenty of success to be had with this method.