One example is Bob Hoffman. Hoffman is an ad industry veteran who suggests that despite all the advances in computing, advertising has gotten worse, not better. That is, ads today are, for various reasons, less effective at creating brands than in the past. (If so, then one might ask "Why pay for them?" There are multiple answers, none of them satisfactory. IMHO. Yours may differ.)
https://www.amazon.com/stores/author/B007W8R8H6/about
https://www.bobhoffmanswebsite.com
https://www.goodreads.com/author/quotes/171361.Bob_Hoffman
https://www.marketingsociety.com/the-library/bob-hoffman-ind...
https://the-media-leader.com/making-sense-of-it-all-bob-hoff...
https://www.amazon.com/ADSCAM-Advertising-Historys-Greatest-...
https://www.amazon.com/Advertising-Skeptics-Bob-Hoffman/dp/0...
https://podcasts.marketingsociety.com/episode/dave-dye-talks...
https://traffic.libsyn.com/secure/businessofstory/BOB_HOFFMA...
https://www.moreaboutadvertising.com/2023/01/ad-contrarian-b...
https://stoppress.co.nz/stoppress-series/features/a-qa-with-...