My main use case for Oracle Linux is to provision a VM and run applications or services.
A specific example of an application I run on Oracle Linux is revenue assurance and fraud management systems. Oracle Linux serves as the OS, while the application sits on the OS. We make use of some of the Linux packages that are residing on Oracle Linux to work with the application or the service. Oracle Linux also provides us with NFS and CIFS because we needed to have a central storage.