I haven't gotten anything specifically because of an ad since I was a kid, but clearly I'm in the minority as ads be everywhere so they have to be working. Even knowing that I find it hard to imagine anyone but children being influenced by them. I'd think most just tune them out or skip if possible, we know what we want and don't want. Imagine if everyone had the willpower to ignore ads to the point where advertising wasn't worth no more. Life would be ever so slightly less annoying haha.
I think you underestimate the power of ads on your subconcious. In many cases it is also not so much about prefering one brand over another but instead being aware of a product in the first place.
Anyways, as mentioned before game announcements are ads. I am pretty sure you had lesser games and more money if game companies would not announce their releases on conferences with flashy videos. You wouldn't probably have heard about half the games you own.