This is a straw man. Consumers are represented by representatives who should have their interests in mind, e.g the consumer votes for someone who in turn votes for outcomes. This means that there can absolutely be a difference in knowledge between the government and its citizens, and so no, they are not the exact same thing. One group is trying to do their job of being a citizen, while the other group should be doing their job of representing the interests of the citizens that voted on them in whatever is relevant. One job clearly should not involve making sure your privacy isn't constantly and covertly violated by foreign nationals, and one job clearly should. Which is which is an exercise for the reader.
> but in a functioning market
Great! Where can I find me one of those?
Exactly. Representatives are merely messengers, so they can only represent the consumers when sharing the message of the consumers to the extent that the consumers have already recognized. Furthermore, representatives are only consumers themselves, so even if you imagine them not as representatives but dictators who step up and act for the people based on how they believe the people want to be overseen rather than from working with citizens they still have all the same blind spots.
> Great! Where can I find me one of those?
Where consumers don't like protecting the market incumbents. But, make no mistake, consumers love nothing more than protecting market incumbents. It gives them something to complain about when idly chatting with each other. Great? Something tells me you wouldn't find it great at all.