When talking about how ads "don't work on you"; it's very important to remember that just like every single other human you're not immune to propaganda.
> the main purpose of the ad
I recognize that showing me the name of the product is the most valuable part of an ad, by far. It's entirely about repetition which breeds enough familiarity for trial, and enough personal affirmation if the trial is a positive one.
But, that aside, if I'm looking for a skip button before the 5 seconds is up, I either do not purchase the product (I'm not sold: I don't buy), or I'm already a purchaser of the product and I'm either a fan (Your ad didn't sell me: I was sold, beforehand) or I'm not (I'm not sold: I don't buy it anymore). It wasn't a statement about ads not working on me, it's a statement about a personal, practical response to ads that I am conciously aware of because I'm already looking for a skip button.
But even if everything I said was incorrect, and you actually are immune, just like you describe... everyone else isn't, and they're being targeted as much as you are.