That depends on whether you are a collectivist or an individualist. Selflessness is not a default, psychologically speaking. It's not very well selected for, in evolutionary terms. Why should we optimize for collective availability of life's necessities? I'd rather optimize for my own outcomes, and judging by their behaviour most other people feel similarly.

Forcing someone into a collective against their will is indistinguishable from a degree of slavery. This by far the greater sin for those who believe in the primacy of individual will and choice.