The differences between akhlak (Islam) and moral (Western)

Sources of akhlak are purely from Revelation and also hadith. It is clearly states in so many chapters in Al-Quran from the beginning process of human interrelationship until hereafter. The prophet Muhammad (PBUH) also says; I was sent to perfect good character. It guides all over aspects of human life, our relationship between us and The Almighty, human and human and also human to others creatures. The unique is the values in akhlak are never being changed in time, place and situation. For example, Al-Quran commands us not to commit adultery and it prohibited because it may cause harmful to religion itself, mind, oneself, progeny and property. This is fixed, and no one can change the rules in whatsoever circumstances you are.
But, according to individual moral self-interest, the act of adultery can be change to recommend behaviors to other societies in the Western country. For example, some of the countries in the Western humiliate for those who did not commit adultery. Why? It is because you must commit adultery if you want to become apart of the society. You will assume by the society as a bad person if you refuse and the society will boycott you.