A few thoughts:
- Sacrifice and civilization are closely related. To live in a society you have to sacrifice some autonomy, some of your (and your family's) goals and some resources. Further, to prepare for the future you have to make a sacrifice in the present. Many people even sacrifice their present selves for their future (not born yet) offspring. It is only logical (if a bit esoteric) then, to think that making a bigger sacrifice will transmute into bigger positives.
- Christianity (not that familiar with Judaism or Islam) was revolutionary because Jesus already made the ultimate sacrifice, essentially freeing everyone from the obligation.
- If one takes a sober view, the history of ritual sacrifices has not ended (and probably never will). Mao was willing to sacrifice millions to bring about Communism (read: Paradise / heaven on earth). Similarly for the Bolsheviks, Nazis, Red Khmer, Robespierre etc. They all explicitly stated in their own writing that the deaths were a worthwhile sacrifice. That is the psychopathic variant of ritual sacrifice, slaughtering a goat to Zeus looks a lot more tame and rational in comparison, no?