Now as for ads themselves, they've gone from selling products to social engineering and selling an agenda. Is this a result of monopolization of industries where megacorporations no longer are worried about competition? Is it just a result of media getting more and more extreme ideologically? Maybe both?
And it's not just ads. It's the entire media space. TV shows, movies, etc are more about ideology and agenda than art or even attracting an audience. Even award shows, best selling book lists, prizes, etc are more about agenda than anything else. Maybe it's always been that way to some degree, but lately, it's become so extreme that the average person can see it now.