Additionally there's also a mismatch between what is good for the public versus what the public will end up choosing (due to ignorance or carelessness). This is

Additionally there's also a mismatch between what is good for the public versus what the public will end up choosing (due to ignorance or carelessness). This is illustrated in your first example. Good laws will protect the public from themselves, even at the cost of supposed freedoms (think schedule A drugs, production, revenge porn, tobacco).