There is another respect in which inquiry into latent functions
represent a distinctive contribution of the social scientist. It
is precisely the latent functions of a practice or belief which are not
common knowledge, for these are unintended and generally unrecognized social
and psychological consequences. As a result, findings concerning latent
functions represent a greater increment in knowledge than findings concerning
manifest functions. They represent, also, greater departures from
"common-sense" knowledge about social life (1968, p. 122).