There is a difference between the general public and the government. It is the government that bought the rights to the work not the people even if the people are the ones that originally provided the money to develop the work by paying their taxes. It can be considered to be analogous to a business. Consumers pay for the products they buy and the profits from this enable the business to make the next generation of products. But that the consumers provided the profit that enabled that development does not enable the consumers to either get an upgrade or for the product to be released with a creative commons license