Certainly, American corporate media are owned by an oligopoly, but that doesn't mean the owners have fine control over everything these journalists write. I doubt the cliche of "Russian oligarch" was issued as an order by any of the corporate owners.

Rather, the corporate environment "naturally" selects certain contents, as journalists learn what will sell or fly, as it were. It's exactly like how Medium shapes its contents. Writers who are savvy (unlike me) learn what the audience wants to read and what the algorithm wil promote, and they feed them more and more of that, steering clear of troubling topics (like the philosophical ones on which I foolishly focus).