I honestly can't connect with the kind of people that ads (fully) work on. The absolute /best/ case for an ad is that it might remind me that there's some cons

I honestly can't connect with the kind of people that ads (fully) work on. The absolute /best/ case for an ad is that it might remind me that there's some consumable item that I buy every so often (food/etc) and that I either have some I can consume or that I'm getting low and might want to restock. For example, an ad for a restaurant I already like might remind me of the positive prior experiences and encourage me to return sooner for more. However, I'd probably go back there / buy more anyway without the ad. Is it really an /efficient/ use of their money? Couldn't they just make their products more attractive by cutting the costs (not spend on marketing)? Other ads might be for products I don't already get/buy... those are probably most effective as 'suggested' results near the top of searches when I'm looking for a specific product or in a specific topic of inquiry that seems related to seeking a solution.