"Caveat Emptor" and "Do your own research" is not a basis for a functional society. Providing reading material is not a sufficient substitute for regulation in a country like the USA where 54% of adults read below a sixth-grade level. And letting marketing decide what counts as "accurate information" is just letting the fox guard the henhouse.

Counterpoint: 54% of adults read below a sixth-grade level because a society has been created to facilitate (and encourage) just that. Encouraging a population to rely on the thought processes of others is exactly what leads to over reliance on marketing.