Conceited?

Why are so many people hard headed? What makes us become to where we only care of our own thoughts? Why do so many people continue living the same way day after day even though they know its wrong or hurting others? What is the thrill behind doing bad things that make people continue to do them. is it the self satisfaction they believe to acquire or the joy of doing something secretive that know one knows but you. What made us become so selfish to need to kill people walking down the street for $10 and a jacket. Its mostly drugs I know, but it goes beyond that. Why would people choose to go wrong and completely fuck the world up. Why do people feel that drugs is a solution for problems or even alcohol? Ok, maybe they say its not my solution of problems or pain, then why would you do it anyway. Is the feeling that great, because honestly I never had a "good" feeling doing any of these, and if it is because of getting good feelings then you are obviously not happy what God has given you, and basically rubbing it in his face. There are people suffering so bad in Haiti and the person living next to you is thinking, "I wonder what that would be like high?" What the hell is that. Fucking sick..... Any insight on this?? Sorry just got to thinking again.