Your point has been made several times on this topic but can someone cite some study about how poor people are more "susceptible" to the ill effects of advertis

Your point has been made several times on this topic but can someone cite some study about how poor people are more "susceptible" to the ill effects of advertising and how everything that is being advertised is obviously "bullshit"? If anything, advertising is what allows poor people to have the same access to content/information without having to pay real wages in return for access. What types of online ads that you see do you consider bullshit?