There are no longer "organic" content on the internet, everything is produced by professionals that are guided by analytics and optimisation.
The social media is searchable by it's vendor but the content there is also optimised for metrics that often don't align well with qualities like accuracy.
Only at places like HN or Reddit there's some organic content in form of commentary. HN is kind of special IMHO as its probably optimised for reach to a specific audience and pays for itself that way, therefore it can be optimised for quality through content moderation.
The web is well optimised for monetisation. Unless someone finds a way to optimize it for some other qualities, I don't think that Google or any competition can do anything about it.