The purpose of the media is to direct the attention of the audience to subjects that the ruling class (the decision-makers) prefer for the audience to notice. This is the same purpose as schools and churches, by the way.
Typically, two mutually-exclusive forms of delusional idealism are promoted to the public and then continuously repeated. The subject of controversy is carefully selected. The dynamic of the controversy is carefully cultivated. These issues are designed for lasting controversy, not respectful dialogue and innovative solutions.
Favorable political outcomes are selected, then problems are identified for which each eventual outcome can be reasonably justified as a solution. Paranoias are created, then hysterias.
The institutions select what the masses will focus on, how they will relate to it or interpret it, and thus the institutions control the behaviors of the public by influencing the experiences of the public. They public does not just respond to what they notice, but to how they experience what they notice.
For instance, certain European interests in the 1910s wanted the US to invade Germany (and perhaps borrow immense amounts of money from certain foreign banks to do so). So, they hired Edward Bernays to use any means to influence the public in the US to accept that outcome (to justify a US invasion). How did he do it? In large part, an invasion was justified through the publicizing of emotionally-charged stories about German atrocities. Bernays later published clear statements that he invented the atrocities, but the accuracy of the reports was apparently not a priority to the public or the news outlets at the time. If the same methods keep working to mold public opinion, why not use them to justify invading Germany and Japan and then occupy those nations for a century or two?
Was the ultimate outcome of a lasting US military presence in Japan and Germany identified as favorable by some people long before the US entered world War 2? Maybe most of the lobbyists did not know that there was a larger plan, but what if the people in charge (the ones who paid the lobbyists and PR specialists) knew exactly what their latest “final solution” / political salvation would be?