When you think of Graphic Design, what do you think of? Advertisements, posters, logos? Graphic Design is much more than just "making things pretty", it is something that makes people think or persuade them to take some kind of action.
Graphic Design has to communicate something, to make something meaningful with a concept, idea, and the aspects of life flowing through their creation. We use Graphic Design in nearly every aspect of human life. It conveys a message through the form of art and sometimes it's not always beautiful. Having a design that is a little quirky, maybe even boring to you, or little odd is good!
Concert posters, book covers, TV Ads, all of these things incorporate Graphic Design a crazy amount. What would be one of the main reasons you go to a concert? Yes, you love the band/performer, but what would make you really excited to see the show? Graphic Designers create things to invoke feeling in people and their minds. When people think of Graphic Design it shouldn't just be the thought of video games or messing around on the computer, it should be the thought of creative people coming together to create something artsy, meaningful, and beautiful in it's own type of way.