For a long time my assumption has been that well funded government agencies can, and do, slurp everything I type. (Even though that breaks several laws.)
That has little to no effect on me. But private companies do - they lose the data; they're open to blackmail or corruption; they're insecure; they inaccurate; etc.
Many more people are caused harm by Equifax listing someone else's debt problems under their name than by the NSA doing whatever it is they do.
This post is not saying that government surveillance is acceptable, or that we shouldn't do stuff to stop it!