Social media pushes the illusion that you are not engaging with professionals but peers, and the dominant signals (how many views, likes, comments, etc.) of this day and age were not present with TV. This seriously messes with the innate reasoning of most humans, because for all our individualism we are norm conforming herd animals.
Show a kid a celebrity pushing something and they can tell it's fake. If the same thing is pushed by all of their friends, now we're in the territory of peer pressure which is a different ball game!