We want government to run or regulate these systems as long as we trust the government but what happens when we don't trust the government anymore?

Like for example if in this years midterms there's a Congressional supermajority, and then the president is elected from that same party two years later and the courts are of that party.

Will we really want government regulations if things?

There would be widespread mistrust by many groups of people of the government having a single party in charge.

Now that government regulations are established and approved they can be used by the government at their will.