A state and a company have vastly different goals. A state should care for its citizens, this includes protections against threats to public safety (terror, organized crime) and surveillance is a tool in the box for that. A company on the other hand, would have no issues fleecing people and abusing their power for profit if they only could. States are the entities actually powerful enough to keep companies in check and I'm pretty happy when they do that.
I admit that this is a, I guess, pretty european view of things (i.e. govs are good, since they keep greedy companies in check), while the american view might rather be that govs are bad because they get into the way of companies (which are considered good).