The universality of the Dhamma holds good not only with regard to morality and ethics but includes the laws of nature. There is no such thing as a spiritual extra law or a privilege of a certain class of beings, neither is there room for the despotism or the 'mercy' of a Creator. The dhamma is the cosmic order, which is applicable to Man as well as to the universe, thus linking up the individual with the whole. The universal attitude of Buddhism prevents dogmatism and narrow-mindedness. There is no absolute moral code which divides the world into 'good' and 'bad' or which tells you what you must do and what you are not allowed to do.
Buddhist morality is based on freedom, ie, individual development.
It is therefore relative. In fact there cannot be any morality nor any ethical principle if there is compulsion or determination from an agent outside ourselves. Understanding the law of moral relativity the Buddhist will never look down upon others as 'sinners '. There is no such thing as 'sin' in Buddhism, and there is nobody essentially 'bad'. There is only more or less ignorance.