@Mel Hopkins Yes, that is it.
It is not an either or proposition, and there are varying degrees of influence across a wide range of domains.
However, all things considered I believe the influence of marketers, in our capitalist society, does us more harm than good. But again, that is because I believe we are more adversely influenced by their influence than you do. Death from cancers diabetes, hypertension, poor air quality, etc, are all the result of use behaving in ways, influenced by marketers that is self-destructive. We can't even get guns out of the hands of crazy folks you'll shoot up a church or school because of the gun culture that has been manufactured .