I believe you equate incentive to monetary rewards. And while that it probably true for the majority of news outlets, money isn't always necessarily what motivates journalists.
So considering the hypothetical situation where journalists (or more generally, people that might publish stuff) were somehow compensated. But in this hypothetical, they would not be attributed (or only to very limited extent) because LLMs are just bad at attribution.
Shouldn't in that case the fact that information distribution by the LLM were "better" be enough to satisfy the deeper goal of wanting to publish stuff? Ie.: reach as many people looking for that information as possible, without blasting it out or targeting and tracking audiences?