I think the media simply ride the flavor of the month band wagon. No doubt the big oligarch money and the media attention has built up these teams to a certain level of arrogance, where in they believe in their own propaganda. Creating a superiority complex, if you will. They not so much demand success, we all do that for our teams, no, these also seem to believe they are entitled to it. There's always lots more shock and horror when one of them slips (pun intended), compared to every other "lesser" team - unless it is a "fairytail" Leicester story.
The fact that we refer to these games as "massive" only pampers to this notion that these teams are "elite" and special. The mentality ought to be that every game is massive. Every opponent needs as much intensity, be they Sunderland or Man U. We should be scared of nobody and treat them all with equal disdain. In short, we need to be ruthless!