Re: Meter base problem?
Grounding is for lightening protection. It was mandated by the power companies to protect there equipment. In connecting the secondary to ground it provides a danger for the consumer that must be compensated for through multiple code requirements such as double insulated equipment and a ground lead to receptacles. If the secondary was not grounded you would not get shocked unless you touch two of the leads.
Single point grounding has been preached for a long time, again for lightening protection. However, the cost of mandating this is not offset by the savings from damage.
Be sure you live your life, because you are a long time dead.-Scottish Proverb