Foucault talked about how we reinforce power relations through the internalization and mobilization of discourse. For Foucault, power is best understood by studying our everyday interactions, instead of examining decrees from those in authority. Power affects us so deeply that we often don't realize how our speech and actions reinforce systems of inequality. Working in software, I see exclusionary comments at least on a weekly basis that almost slip under the radar as being innocuous until you realize that this is exactly the form of power that Foucault analyzes in his studies.
So to answer your question, assuming since you're posting in HN that you're in the software field, you may be interested in reading Foucault if you're interested in obtaining additional analytical tools to understand and improve the currently horrible, exclusionary system that permeates the software world.
As a disclaimer, I'm not saying that Foucault is the only way to understand this phenomenon, nor even necessarily the best. Just trying to point out some concrete ways in which his concepts may be useful in certain scenarios.