That way all people from all walks of life would get to be on equal financial status every 7 years. Also, everyone could experience the opportunities money can offer. Over the course of 7 years the even distribution would not be maintained as some would loose and some would gain, but at the end of 7 years, it would all be divided equally once again. There is no money or trading with things such as jewels or shells. Everyone just has what they want.
People go to work because they want to.
There are no bookkeepers or tax collectors, there are no police or lawyers. Maybe one underworked arbitrator. There are few combustible materials, so the Fire Dept. is small. Everyone has a voice on what is happening. Transportation is by teleporting with the mind and intention.