we have not been able to imagine a social system capable of adequate constraints on the abuse of power, much less a society in which the exercise of power is rewarded for its programs in support of human well-being.
"We" implies a higher authority exactly on the lines of the savior that the author criticizes, except in the plural. Who but God do you imagine has the perspective and authority to judge what is "in support of human well being?" A savior no doubt. And so the author appeals to Christian mythology in order to revamp Christian mythology. A bit circular dont you think.
Better to build a new guiding story from scratch.