It is not so easy to correlate income with contribution in the modern economic system. I am really good at making more datacenters and populating them with servers but it gets kinda nebulous when you try and relate that with direct benefit to society. Yes large corporations can get their compute and storage cheaper than if they had their own servers, but does this actually net benefit humanity? Not sure.

It's easier to realize you make money because its making other people money ( nothing to do with benefit though ).

No, although they often act like they do (e.g. using images from "social media").

You can use excerpts to comment on a work (e.g. review), but that's about it.

In most countries, journalists can use portions of copyrighted materials under fair use. For example, a science reporter could use quotes from a published study to summarize their findings. That's not the same as a bot scraping a journalist's copyrighted work in it's entirety.

In addition to what the peer commenters have said, I don't believe that these videos are credibly "journalism".