Wow. I guess you must be serious about this stuff then. To go against the primary drive of all living things to procreate and continue their branch of the species.
Not "all living things" need to reproduce in order to benefit the survival of their genes - look at a beehive. (Or from a human civilization perspective competing for resources - an army).
Sorry, so are you suggesting that anyone who decides to not have children is a drone?
No. I'm pointing out that what you're arguing - that a free choice made by an individual to "sacrifice" what you fallaciously claim is the primary drive of all living things is not correct - and gave you a couple of examples. One where evolution has resulted in non-reproducing individuals as a survival advantage for the species, the other with humans where when the going gets tough, it seems to be to easy to convince individuals to go and fight other (usually less closely genetically related) humans to the death (and risk death and thus the possibility to not pass on their individual genes). Tribalism seems to be an innate primitive instinctive behaviour of humans, for better or (mainly) worse. We're a social species.