Actually, people have been calling out media organizations and getting them to print retractions and even suing them. When they do retract, they do it in a way where it doesn't get much space and much attention. (The mainstream media is particularly bad about covering this sort of thing.) Some (even mainstream) organizations in 2018/2019 would simply ignore the claims. Some (even mainstream) even quietly edited articles without retraction.

In any case, I don't think most media organizations care, because most of the time, the retraction isn't nearly as viral as the initial clickbait story, and even if there was outrage, that would still ultimately benefit them by ultimately generating more attention.