When you talk about why the world has so many problems you keep referring to good and bad messages, good and bad thoughts, and good and bad actions. Whose ‘good’ and ‘bad’ are you referring to? Should we all accept your definition of what is good and what is bad? What if I have different ideas on what is good and bad? Who is to say you are right and I am wrong?
Your question is indicative of two common misperceptions among people in these modern times. First, the concept of egalitarianism has generalized to many aspects of life, in this case to the validity of beliefs. That misconception could be stated thus: since all people are to be considered equal therefore all people’s ideas must be equal. That is, of course, a logical fallacy. The second misconception is the commonly held belief that absolutes do not exist therefore we exist in a state of moral relativism.
You ask why my idea of what is ‘good’ and ‘bad’ is any better than your idea of what is ‘good’ or ‘bad’. The reality is that all beliefs are not equal. The belief about what is good or bad from either you or I are not equal, one belief is superior to the other. To determine which of our beliefs is superior our beliefs would have to be measured against the absolute truth of the nature of good and bad. The only one who truly knows what is good and what is bad is Allah (God). Only Allah possesses the absolute truth regarding any matter. Therefore, what is good and bad for you and what is good and bad for me are exactly the same, regardless of what beliefs we may hold. You may well not accept what I have said, but the truth is the truth no matter whether or not you know it to be true or whether or not you will accept it as true.