By definition, I think that market manipulation always happens even the people that doesn't know about it are actively participating in market manipulation, what I mean is that people that are buying goods and services are the reason why the market moves so if there's an advertisement for a product or service then in a way it can be a way that the marketers manipulate the market. So in a way, market manipulation happens everywhere and it's a common occurrence.
Basically, marketing strategy is the key to boosting sales of a product. There are many marketing strategy systems that immediately stick to our memories, so we buy them and apparently this is also experienced by many people, thus moving the market simultaneously and causing big movements. This is something that usually happens in a business, and then it depends on whether the product is able to survive and gain the trust of future consumers
In developing a business, of course everyone has a different marketing strategy to market the results of their production, some succeed in attracting interest from their consumers and there are also those who fail in marketing their goods. If they have good production and are successful in marketing, of course they will make a profit for their business. If the goods they produce are goods that are sought after by consumers, of course they will be able to survive for a long time in the business they have built and this can be profitable for consumers and business actors.