Yeah I'm not sure this story makes sense either. Shoes may act as an insulator but wedding rings and belt buckles would presumably conduct.
Additionally potential differences tend to attract rather than repel unless these individuals were also charged with the same polarity as the field as far as I know.
When someone is talking about insulating shoes their point is that the body is electrically isolated from the floor. Without that isolation charge can travel between the two. Concrete and skin are fairly good conductors by comparison with air or insulators.
Wearing a conducting ring might make it easier for charge from the air to move into your body through your skin - but it will not make it easier for that charge to get to the floor (and then to ground) from your body.
Generally when people talk about shoes (or tires) they are talking about voltages that can jump the distance from their foot to the ground through air - around the shoe.
Most shoes are not great insulators - they insulate but how knows who much. electricians sometimes buy special shows that do insulate. Those shoes come with care instructions and dust on the outside compromises their insulation.
Additionally potential differences tend to attract rather than repel unless these individuals were also charged with the same polarity as the field as far as I know.