Everyone today has a great idea for an application. Most of these ideas are very similar. The only difference may lie in the choice of technology used to develop it, or in the choice of team working on it.
It's all this that makes you special. Creating an application usually involves the use of different technologies and skills on the back end and front end.
These are, respectively, the part devoted to the application's functionality, and the part intended for the user experience.
However, if you call on a good developer, or an experienced team of developers, they can rely on Node.js to deliver an application created in JavaScript.
Given that JavaScript has traditionally been used on the front end, you end up with the same language for the back end and the front end, instead of two different languages.
That's a pretty obvious set of advantages for you. It's up to you to make the most of them.