Hm. This question are be loaded.
I'm disappointed in the world. I don't know if, until now, I've been able to sum up all of my reasons. I'll do the best I can.
First off, I'm annoyed that America (I cannot speak for the rest of the world) seems to actively condemn intelligence. The people that the people of this nation honor are often deserving of anything but. Now, I don't like to use words such as "intelligence"- it's not something that can be pinned down scientifically. It comes in a variety of forms, and in a way, that's what makes it so beautiful. But from what I have noted, I cannot find any form of the aforementioned term in anyone that is loved by the general public.
I guess my main complaint all stems back to stupidity. Not just the kids who made fun of us/make fun of us in high school, but everyone. You, and me. Our neighbors, family, and friends. We're all guilty of being stupid some point in our lives. Most of the time, our slip-ups are trivial. Saying the wrong thing to the wrong person, or accidentally being insensitive. But there are times in everyone's life, and, correct me if I'm wrong, where we've done something, and the only thought in our heads is, "if only I would have thought about that before doing it". It doesn't matter what effect it had on the world at large, it made us feel like crap for days.
And therein lies the problem with the world. It's easy to just call people stupid, because hell, we are. Not they. We. But maybe it's a little harder to put a bit more substance into it. The thing is, it's not a general lack of brain cells, or a lack of chemical power running through them. It's just that we have an amazing organ that literally creates our reality, and yet we don't use it. I've griped about this somewhere else, too. We need to think more. Stop following blindly. Analyze the environment. Metacognate, every once in a while.
I really hope I didn't start getting off topic. Sometimes, my rants just find a tangent, and go with it.