The big power nations such as America,Britain,Russia,France etc suppose that they are exempted from following democracy when something is against their interest in the United nations. That is why these countries created the rule of veto power. That means they have definitely double standard in the application of democracy. Likewise is the case of nuclear weapons. The Us can produce,apply,and store it but some countries have not right it to it. Democracy is green weapon for most of the super power nations.