There are two distinct schools of thought in the philosophy of ethics emanating right from the times of Socrates himself. One school of thought is based upon the belief that all humans are equal, human nature is innately good, and wisdom means virtue, or the way to be wise is to be virtuous, and also that to be intelligent mean to be good, as this would be the only way to act according to the dictates of human nature.
The other school of thought believes that all nature, including human nature, is amoral, or is beyond the requirements of good and bad, all human beings are naturally unequal, and the ultimate desire of man is to seek power. In this case then being good, and even wise, is not conditioned by being good. To be intelligent is to be successful and happy, to be able to achieve your ends through whatever means one might deem useful.
I personally believe in the dictates of the Noble Koran, the holy book of Islam. According to the holy text all human beings are born good, they have innate virtuous characteristics, and therefore they have natural propensity or inclination toward good, and the ultimate happiness is in the accomplishment of all things Allah Almighty has approved as good, and the ultimate of human happiness is in whatever is pleasing in the eyes of Allah Almighty.