That's not true at all. What newsroom did you work in that had journalists writing their own titles and expecting even a modicum of influence over the final product once it has been handed in?
I work in a newsroom, albeit a small one--a public radio station--and we do that.
I also have the freedom to tell my bosses "no" so I expect my newsroom is probably in the minority.
Interesting side note: We're growing in a small market (Vermont) at a time when most newsrooms are shrinking or even collapsing, especially the small markets. Sure, correlation is not causation, but I would argue that the culture plays no small part in our success.