There's a somewhat pervasive idea that advertising and brand recognition are coercive tools that will ultimately die out, replaced by better objective information about products. I'm kind of partial to this idea myself. But increasingly we seem a long way from achieving this. Amazon reviews have become such garbage, I've fallen back to pretty much relying on name brands as my placeholder for product quality. There's…
I just made a pretty big purchase decision in a field (cameras) where there is a lot of competition and reviews carry a lot of weight. In the end, the information that helped me make up my mind was from video reviews by mostly well-known photography vloggers on YouTube. This is also something that could be messed with by unscrupulous marketers, but there is a strong counterbalance to those anti-patterns: the vloggers…
Just to be clear though (I work in a field that relies heavily on niche-specifc YouTubers for marketing) - the reason that being a "top niche blogger" pays so well is because companies pay them a lot to encourage favorable opinions of their product lines.
I've seen amounts that are several multiples of my annual salary for fairly small market segment channels - and it's not explicit like "We are hiring you to post positive reviews of our products" because that would need to be disclosed. It's more along the lines of "We are nominally hiring you as a brand ambassador, you will visit our HQ and make a collaboration video". But of course, YouTubers aren't stupid, they're not going to post negative content about brands that are paying them even if it's theoretically for something else.
This is the same problem that PC hardware review magazines had back in the day - companies that purchased a lot of advertising from the parent company just happened to never get negative coverage in review articles. You can't bite the hand that feeds you.