Samsunghugh, your concerns are certainly justified, but have a look at what you're saying:
My fear lies not in the purchase of armies, weapons etc but in the formation of a society, which could be controlled by some head to do object x
Is this situation you're describing not the situation we're in now? In an AC society, at least if people want to go to war, they have to pay for it themselves. Under this society, some people (the politicians/the 'head') decide to go to war, and everybody else pays for it with their money and lives.
I do believe (though have limited evidence) that people will want to form some sort of larger society
If people want to form their own societies, that is fine by me - my argument is specifically about being able to opt out of those rules. ie. I have no problem if you want to live under a government, my problem is when you start imposing those rules on me.
greedy and will manipulate others for their own ends.
Look at what happens now with rent seeking behaviour and special interests who all lobby the government to get subsidies or favourable legislation. So clearly the government even fails at stopping people being "greedy and manipulating", since it fails prey to corruption and bribery.
The biggest problem with what the government does, is the 'services' it purports to provide, are done on a monopoly basis. If we had true free markets, there would be competition allowed in these areas, but unfortunately there is no competition and therefore the government departments have no real incentive to do a good job. In fact, the incentive can often be to do a bad job so that they will get more funding. What kind of private business can just fail and then expect
more money for it?