Recently, Chile lived the victory of public policies of prevention and care of the HIV infection as promoted by the WHO’s and UNAIDS technical truth (our meaning of the technical truth has been defined in the latest works by Michel Foucault). Yet the recent history of Chile's health policies in our research matters urges us to be cautious. Issues such as social responsibility of health spending have come and gone according to the political upheavals of the recent decades. Some crucial topics for the prevention of vertical transmission of HIV/AIDS, linked to private values and its influence on public policies, as in the case of therapeutic abortion, has long been under the influence of the dosage of secularity allowed by the catholic church to the most conservative political parties. The promotion of the condom as the only way to prevent the sexual transmission of the HIV, a simple technical truth “known” by the northern public policies since the 80’s, shared the official prevention campaigns with abstinence and fidelity till 2015. However, if a truth deserves our sympathy, it deserves at the same time the aversion of sectors of the population just as respectable as we are. If we consider with kindness a technical truth that emerges from the debate to impose itself as "the truth", ignoring that what has really been imposed is the prestige of technicality, we probably ignore the sense of political struggle as a scientific object.