I think you are touching on the aspects of scale (how much data collected) and harm (how it is used against us). Another important aspect is time since the olde

I think you are touching on the aspects of scale (how much data collected) and harm (how it is used against us). Another important aspect is time since the older the data is, the less valuable it is to corporations and governments. Debate between which corporations are better or worse comes down to trust and PR. Some people believe that all publicly traded corporations are structurally incapable of protecting users over profits.