You have nicely and comprehensively described the present-day behaviour of human beings. Yeah, situational Ethics has become rule of the day while moral ethics is the requirement.
It has been my habit (since childhood) to do things in a planned manner. Before starting my blog, I spent many days in planning the methodology and broad outline. I try to keep my plan but, the blog being open-ended, I feel it my duty to take up earlier the chapter planned for later date if friends, who spend their precious time to guide me, take up that point.
Further, if an answer to / clarification / comment on a comment of a friend appears to be useful for friends at large, I record it in the main post in stead of the comments section.
I want to stay unbiased but the comments I have so far received indicate that Hypocrisy is more in the West than the East. (border line between East and West ?) I am living in the East. I have been to Middle Eastern countries, Africa, Turkey, Europe, UK and USA but have not been to Far East. Still I like to put it as: Hypocrisy is being felt more by the friends in the West than in the East because of two possible reasons:
(1) When things go too bad, due to human instinct, persons start searching the good.
(2) People of the West are more educated than people in the East.
You have, also, correctly pointed out the role in which God and national interest is being used (in fact misused). In my country, the phrase “In the best interest of the country” has been so frequently used that we may require to change all the dictionaries. Some rulers / leaders of my country (especially the present one) have even dared to mistranslate the Holy Book to justify their unjustified actions.
So far as emotional response from the masses is concerned, it is result of their blind faith in the ruler / leader due to lack of knowledge of moral ethics. Masses are, also, lead astray when several consecutive rulers consistently maintain Hypocrisy.
I have not mentioned religion because, in our struggle for material gains, we have placed religion in a safe locker and forgotten about it.
Again you are right that nations eat themselves up when they go too far. It was not only Rome and Greece, there were many others; Pharaoh of North Africa, Fire worshippers of Faris (now Iran), the most developed rulers of (the lost) Atlantis, etc.