ISIS and Arabs

I write this post with a lot of anger in my heart. Over the last several years I see a constant stream of violence coming out from the Middle East. Earlier it was Afganistan now it's Iraq. From Al-qaeda to ISIS. These people since 2001 since I really came to know a world of terror (nearly 15 years have passed) the world has not rested in peace. Why can't we live in a peaceful world? Anyway, My point is this, why can't these people put their energy in building a medical school or scientists or engineers? All I pray now that somebody makes an engine that works on air so that nobody is dependent on oil and these people are forced to develop real economy based on real sweat and labour and not just by selling oil.