This is probably the greatest argument for big government. If we were to eliminate the supervision of the establishment over the safety and security of everyday life, it would be very time consuming to handle every single aspect of it. There is always the issue of an overreaching government, and that's where the left/right party split comes in. Each party either creates more regulation and protection or take some awa…
No, this is one of the greatest arguments for small government or no government. People are more rational when the cost to them of being irrational is larger. Voting for good policies is a public good. When a voter is one among three hundred millions of citizens, only 1/300,000,000 (on average) of the benefits of the vote befall the individual voter. This gigantic externality means that the democratic market will sev…
The economic argument for government providing public services is actually that for public goods, the incentives on the individual lead to sub-optimal outcomes (that’s partly just the definition of a public good).
Just because voters vote for government that may be less good at providing that public good (let’s say police protection) is not an argument that this completely eliminates any benefit from that service being provided as a public good.
From the simple example, the Democrats may provide less optimal policing than Republicans (wasting money on nanny state directives) does not mean the service can effectively provided by the private market.
You’re positing that sort inverse incentives apply when voters are choosing the governmental provision of public services. This seems unlikely to be true in the aggregate because voters do not get to choose politicians who are going to pursue policies to benefit themselves, as an individual, when they vote. As you point out, they may vote for totally psychological benefits.
So the tension is not really over the size of government; it is over making the correct determination of how much of a good or service is comprised of being a “public good.”
Classic public good problems, like imposing the correct costs on pollution, can’t be solved by wishing them away.
What you’re complaint more seems to be with is that democracy allows elements of self, or class, interests into individuals voting choices. The solution to this would be some kind of perfect benevolent dictator, who would make the optimum determination as to which goods should be provided by the government, and dedicate the correct resources to them.
The problem with this, of course, is again the incentives on the holders of power distort their decision making to their own benefit, as had be shown over and over in the real world.