It is a circle. Society influences facebook, facebook feeds back into society. For example, I’m convinced facebook’s amplification of pro-brexit and pro-trump messages in those campaigns was instrumental in their victory. No facebook, no president trump. I’ve also seen how facebook turned my sister into an anti-vaxxer.

In essence you can look at facebook as a platform for information warfare. It tends to amplify lies, and some forces are more able to exploit that.