You may very well go to a movie theater and have a bad experience because an advertiser took a movie they knew was awful and made an appealing trailer for it. The advertiser is just as willing to persuade you to see a bad movie as a good one. They aren't operating in your interest.

Far from negatively impacting your life at all, blocking ads significantly improves it. Try it out yourself. I think you'll find that through various interactions with the general public, people who aren't paid to lie about products or services, you still find out about movies worth watching.