3+ decades ago Warren Buffet let on about his secret to making great investments. He was basically laughed at and equated, I believe, to a lucky monkey flipping coins.
To this day his strategy still works and many people choose not to believe. Peopel have been sold a bill of goods that you can't invest for yourself, it's too hard, you can't beat the big guys or the market. There are experts out there that can do it better than you ever could. and Warren would agree, if you aren't going to put in the time, pick a simple, minimal load index and put your money in there. Over 40 years you'd be in pain understanding how much it costs your retirement to have fund managers (my belief, not necessarily yours or the popular belief).
Same thing with the Patriots, if a message gets repeated often enough, people believe it exists as truth. I'm not sure why that happens, perhaps people need to feel connected/grounded to a common framework and many people don't dare step outside. Add to that mix what the media does, they fuel the negative emotions of people and keep them distracted by finding someone else to blame for their problems or "bad" things that are happening.