It goes much much deeper than mere commercial and polls, that is just the most obviously true and easy to demonstrate. It goes much much much deeper. Religions are a huge example. If your religious imagine people of a different religion and keep in mind the believe it just as strongly. They grew up in that system, so their reality is limited to this religion. But it goes deeper still. History is nothing but lies for the most part. the news is mostly lies and disinformation. The movies are loaded with messages that repeat over and over in a sublte fashion and have measurable changes over time. Music is the same. Culture is created from the top, the celeberties are picked for reasons and promoted to put out certain message they want people to follow. I could go on and on, we are kept busy and feed endless amounts of entertainment so we never have time to learn to think. the average person is fully under control of those at the top setting these agendas. (and if you don't believe there is an agenda how do you explain the same messages being put out across different platforms all at the same time, that is an agenda and where does it come from... the top)