A good conversation is based on truth and thoughts that evoke something worth it. The media in a sence talks to you. If it talks in a unuseful way, it's has little use, it's a waste of time. Definetly with all these opinions out there already, Filtering fake news keeps free speach in value.
Verification might mean work to do and work to do money spent - in other words if it is not profitable for the media there is no reason why they should do it.