If they are needs, then none can be compromised.
A person should always aim for harm reduction. If an unwinnable situation were to arise, harm reduction statistically would favor the many for most scenarios. From a causal perspective, sad as it is to say, the casualties were not going to live past the situation; from this cold but pragmatic perspective, even something as invaluable as a person’s life is unfortunately not “needed” per se.
My dogma defines my in-group, and my in-group can’t be wrong because then that would mean that I am wrong, which I categorically can’t be. Therefore, your science and logic and proof must be wrong if it contradicts my dogma.