General Will and Self-Interest

One argument against the existence of a General Will that can supersede Self-Interest in an individual is simply that the individual Psyche is governed by an insuperable principle of Self-Preservation. But, not only is that argumentv question-begging, it is false. For, the reproductive drive that most individuals experience is a trans-personal instinct that can be deliberately assumed, e. g. whenever there is a seeking to get pregnant. Likewise, the incapacity to posit and act upon a general idea is a contingent weakness, possibly intellectual, possibly moral, not an inherent structural limitation.