Morality is a Collective Emotion  

Yes, it is a result of collective emotion and could have a salient effects in the society. Leaders have different role of collective emotional in account to create and resolve conflicts. They have a vital role in shaping individual in the community and to find answers to the uncontrollable social issues. That is why the different leaders should come together for the common resolution. 

I agree with this, we need to find common grounds where we can work as members of society and not always attacking someone/something if it is not what we believe in.

Morality is the requirement of our leaders 
to control the issue of society and to have an understanding of each other n

First of all, morality is a principle or the distinction of good and bad; right or wrong behavior.It includes ethics, correctness, rights and wrong, therefore it is a collective emotion. We don't really know how to perceive which is right and wrong, it all depends on the reality or perception of one another.