Version control is an important part of file management on every software development project I've ever worked on in the last two decades, regardless of the methodology. I've used Subversion and Git and several others in the process of building software.
I always find it a bit surprising that other industries don't use version control nearly as much as we do in the software industry. For example, I know several writers who know nothing about version control and they would benefit greatly from it. The same is true for several artists and graphics designers who I know. I find that version control it is extremely easy to work with and gives me some key benefits.