Governments and companies are increasingly datafying their citizens and users, processing and making decisions through algorithms, but do the developers of algorithms hold too much power?

How do we make sure that we use data in the most optimal way? Is seemingly objective processing of big data sound or is it subjected to (political) decisions by the developers that are kept too opaque? And if so, what are the societal implications of issues such as inclusion, democracy, and access, and how do we improve this?