Comparing science to religion is comparing apples to oranges. Religion is a way of thinking and living, where science and technology are tools. They are often pitted against each other, because one is faith based, believing without proof, and the other is fact based, believing only what can be proven. If religion has a true rival, it should be philosophy. Both offering moral guidance, but one with a god, the other without.
You say "Where in the scientific community have we seen any real significant humanitarian movements?" and I say where would any humanitarian movement be, without science and technology. It would be much harder to feed