By stressing abstinence conservative discourse engages in a hypothesis that promotes desire;
you say yes, the higher your chances of "infection," the more leaky the moral boundaries.
The hierarchy of morality

abstinence,

monogamy,

condoms,

etc.—has eroded, however, many recognize the flimsiness of the boundaries constructed.
Monogamy means little if one partner is HIV+ and the couple, thinking they have the
moral requirement
in the symbolic contract that disqualifies them from contraction,
practice unsafe sex.
This education denies a field of indiscretion by promoting a rhetoric of the discreet individual.