No matter what you do, what your title or position says, part of your responsibilities is customer service. In order to create organizational culture where everyone is on the same page and provides consistent level of quality to clients (both internal and external) each team member must understand that their interactions with customers matter.
All of us must embrace this mindset for the sake of both organizational as well as personal benefits and goals. Furthermore, in order to advance professionally, one of the cornerstones of success is familiarity with people in your organization and excellent customer service.