It is a common misconception about Judaism that the laws, rites, rituals, commandments, and sacrifices are for the unique purpose of salvation. They are NOT. They are for the purpose of striving toward making mankind more righteous so that they can lead a good, meaningful life on earth. And even this, noble as it appears, is not exactly the primary reason for the commandments. The primary reason to follow the Law is that G-d commanded we do so, and G-d knows best what is good for us to do. Personal salvation, in the Christian sense, may be a by-product of the Law but it is not the essence of Judaism.