Kubernetes RBAC roles are like roles in a school play. They tell the actors (Kubernetes pods) who can do what and when. In a play, the lead actor might have a lot of lines and get a lot of attention, while the supporting actors have fewer lines and usually work in the background. Similarly, in Kubernetes, the RBAC roles define what each pod can do. For instance, some pods may have permission to read data, while others may have permission to write data. By assigning roles to each pod, we can make sure that the Kubernetes system is secure and only authorized users can access the data.