An argument is presented for the use of the concepts of Micro-Politics and Semiotic Power by Bijker, and Infrastructural Inversion by Bowker to understand the geopolitical dynamics of career-building, knowledge and value creation in the field of human computer interaction (HCI). This is illustrated with brief references to examples of HCI academic and professional practice and dissemination in local and global contexts. It is shown how local and global micro-politically dominant groups in the HCI field can construct scripts that define quality, impact and relevance. These scripts in turn have a direct effect in career-building and what is considered valid and useful knowledge and practice. The political leverage of these scripts is therefore embedded in artefacts used for different types of transactions in the HCI field. Infrastructural inversion is finally presented as a possible framework to deconstruct and make visible these scripts and the different types of historical and political tensions inscribed in them at disciplinary, local, national, regional and global level.