Social impacts many parts of a business. However, stakeholders in those departments might not even be aware or understand how social helps them. You likely report to a manager who cares about social, but there's also a lot of value in building cross-functional relationships that you can leverage to increase social's reach. Do your best to identify the leaders, as well as the passionate individual contributors in those departments. Work with them to surface what metrics and tactics matter most, and then report out on those regularly. This will help build credibility for social within the organization, and raise your own profile as well.