Paid social can help amplify organic content, using social network advertising tools to target the audience. Using the rugby example, on Facebook you could target people who like other leading rugby fan pages. I recommend testing paid social campaigns to promote key content assets like reports and highlight important news/announcements. With a small budget you can quickly measure amplification impact.
Now, it is not that these sites are not interested in Google users. In fact, they have hired us to help them increase their share. However, they are getting so much traffic from sites like Facebook that it seems there is less urgency about attracting this traffic and less willingness to change the site to meet organic standards. Not long ago, sites would urgently and unquestioningly abide by Google’s standards to court that traffic.