Not sure if that would be the end of the world. Something needs to pay for hosting and companies will want to use social media or may want public forums.
Could be an ad supported instance or a nonprofit with membership fees to pay for hosting. There could also be an instance for hosting company based topics and mod accounts. On Reddit a lot of games or companies had an official sub and accounts. Running the magazine/community could be a service. Especially if there were some extra tools or settings for companies or company accounts. Another possibility is having a closed and private instance for internal users like a slack or internal wiki.