Until their primary/main client is/are governments.

Tech companies' clients are advertisers and businesses, whose interests align with those of the tech companies. We get the end product for free, and we are not the clients.

Their clients are paying them to do exactly what they do. Do you perhaps mean their "data subjects" will change their behavior? That hasn't happened so far - advertising is a hell of a drug. How many people can even resist the upgrade treadmill for the overwhelmingly anti-user devices in their pockets?