Big countries are in a position to abuse their power. E.g., they start wars. Your worries are partially addressed by the separation of powers. The trillionaire

Big countries are in a position to abuse their power. E.g., they start wars. Your worries are partially addressed by the separation of powers. The trillionaire government is split in three branches which helps curtail its power. It is not the task of a government to be efficient, it is the task of a government to be correct. I.e., have somewhat just laws that are executed somewhat correctly. I am saying 'somewhat' twice because one should not expect miracles but one can hope for livable and perhaps even prosperous conditions. The threatening collapse of this separation is one big current thing to worry about in the US. A government that respects the separation of powers is less threatening than a company of a tenth or a hundreth its size because the company can act out the will of a single individual. Generally it is true that if an individual/organization gets too much power he/she/it will find a way to abuse it. But government is also necessary to ensure that another, most likely much more intrusive government, comes in by force and starts reigning over you. And also to ensure that big companies and rich people do not abuse their power too much. What is needed in general is that the natural tendency of power to concentrate is kept in check by other powers. In the US this system was thrown out of whack mostly because of the enormous amounts of money needed to fund campaigns in combination with a two party system. It was way too easy to just buy both parties until one of the parties decided to go rogue and become the billionaire interest group, as if billionaires need an interest group. Over time enough damage, mostly in the form of large uncertainty and/or poverty for the average citizen, was done to society so the discontentment over this enabled the fascist leader to rise. Only the future can tell what the result of that will be but it is not impossible that a billion dead bodies will need to be buried because of this. Compared to that your 'ever increasing creep over all aspects of your life' seems a bit of a minor and/or theoretical concern.