An inept metaphor.
In that kind of case, that authority is given to those parties, by us, as an implicit choice, by participating in that kind of society.
the authority is far, far, far more than the mere sum of its parts.
For instance regardless whether you choose to be part of a society or not, murder, fraud and rape will get you in a lot of hot water very quickly anywhere on the planet you care to mention (unless of course you establish your position under the umbrella of an existing authority - for instance a solider technically carries out murder, but provided he does it to a designated enemy within the confines of designated rules of engagement, he stands to be rewarded)
And thus, we are each god.
not at all (unless you would want to include puny gods in the same category as god ... but it wouldn't really fit with the definition of god being outside of any authority)
there are a host of authorities we submit to, from the socially derived ones from the political structures we exist in (eg, police, tax, one's boss (or one's clients/peers if one is self-employed), council bylaws for everything from hygiene to architecture, etc etc) to the physical ones that we submit to at practically every second of the day (ranging from the environment, like floods and earthquakes to mere hot weather, from one's own body and mind, like a tooth ache to depression to old age or even the requirement to go to the bathroom on a regular basis (or even the requirement to go to a separate room to perform such business) , and from the bodies of others, like if a monkey breaks into your house and steals all your bananas or a big muscly guy punches you in the nose before relieving you of your wallet)
clearly there is a big difference to being able wield some authority (like, say, authority over cooked cauliflowers (that one has paid for) on one's plate ... and even then provided one isn't in the immediate vicinity of monkeys partial to cooked cauliflower) and not being under any authority