I'd hesitate to say all Autists are immune to advertising. My daughter is high functioning, diagnosed at age 2, currently 18. Advertising absolutely works on her. She's always asking to try new food items at the store because she saw some challenge on youtube or some BS. We can be on our way to Dairy Queen to get a blizzard and she'll be on the phone watching DQ commercials all the way there. I dunno. It's almost like people are individuals or something.