In the case of ads, arguably negative social value.
I would love to see ads that are only relevant to my life instead of penis pills.
I don't really think so in the general case. Personally I've eaten a lot of food I found out about from ads and wouldn't have known I wanted otherwise, and I'm glad iit happened.
But if ads convince you to try 47 different restaurants and that otherwise you would have been perfectly happy to eat at home, then the ads did a disservice to society.
And you must remember that for every local food ad there are 300 ads for McDonalds or Walmart, and they are just as effective, altough likely for another demographic.