You don’t need to either/or these 2 concepts. Societies always have some amount of negative and positive freedoms. In Germany it’s illegal to do the Nazi salute in public, which is a form of ideological censorship, but there’s a valid, widely accepted reason for that. On the other hand, privacy is a Human Right, so there’s also wide consensus as to its value. Violating the privacy of the masses, in order to sell more products, is not exactly something that is very defensible because we collectively seem to find it unethical.