I admit being influenced by advertisements, especially by social media ones. I've bought some clothes or skincare products after seeing them advertised by influencers. I've even used discount codes promoted by them to buy those products.
In my opinion, the most successful ads are those that have a powerful message. Brands use advertisements not only to persuade you to buy something, they also want to enhance the image and values of the company. A good example is the "Real beauty" campaign from Dove.
On the other hand, a good jingle or slogan make a huge difference and can transform an ad that goes unnoticed into a memorable one.