Just ask any marketing person--it's their job to keep demand for a product or service high. So they depend on advertising and other methods to create brand recognition and a sense of demand for what they sell. These days marketing firms are even more clever, recruiting social media influencers who promote a product or service directly or indirectly--sometimes without disclosing that they are a paid lackey. We're getting better at influencing humans, either by using traditional advertising methods, such as keyword advertising, or, even scarier, by leveraging AI technology as a way to change hearts and minds. Often "the targets" don't even understand that their hearts and minds are being changed.