You don't get it
You are so hung up on copyright you don't seem to understand the economics of websites.
There are two ways that content earns money. Subscription or advertising. Most online news sites make money from advertising.
The revenue from advertising is directly like to the number of viewers. The term is CPM. Basically the more people that view (hits) an article the more revenue advertisers pay.
If a blogger, by linking to an article, doubles the number of hits on an article the news website gets double the advertising revenue. So YES, linking to news article DOES increase the revenue and profits of a news site. So bloggers DO help news websites make more money with links.
