There are a few reasons why Ashoka may have given up the four points. First, Ashoka may have felt that he had accomplished his goals and that further bloodshed was unnecessary. Second, Ashoka may have realized that the Mauryan Empire was too large and unmanageable, and that it would be better to focus on ruling the empire efficiently. Third, Ashoka may have been influenced by Buddhist ideals, which emphasize compassion and non-violence. fourth, Ashoka may have wanted to set a good example for other rulers in the region.