https://www.cnet.com/news/facebook-removes-more-pages-and-accounts-interfering-with-brazilian-election/

RFA used fake accounts and pages to post huge amounts of clickbait, much of it sensational political content, that directed users to websites that were actually ad farms, according to Facebook's blog post. The social network said this removal is one of the many steps it's taken to prevent interference in the Brazilian elections. 

In this case as in others like it, Facebook said, the interference has less to do with ideology and more to do with profits.