Me and my friends are so used to identifying and quickly ignoring ads from a young age, that they have become largely uneffective on us.
Comparatively my not-so-techie friends and family, that haven't grown up so used to ads, tend to be more influenced by them and purchase more stuff (my dad clicks facebook ads more regularly than me and my friends).
I Wwnt to preface that I do understand where you are coming from, and spent many years agreeing with the sentiment that you pose, but over time came to realize that I was mistaken and had an oversimplified view of what makes the advertising industry tick.
In the interest of discussion: do you think that most people are too lazy/ignorant to ignore ads like you and your friends do?
On the other hand my non-gamer gf can't understand how I can read or play a flash game when it's surrounded by few animated banners.
And my mom starts to read each page from top left corner as if it was a letter she got from IRS or sth.
Someone put it this way regarding the recent machine learning researcher craze. It went something like - PhDs are currently being paid millions to study where to place the pixels on your screen to influence you.