The wider community both suffers (from e.g. deprivation of privacy) and benefits (e.g. via a vast array of free content): but it takes a long time for society to work out how to make and enforce rules to govern these activities adequately.

One thinks of Uber and AirBnB (deliberately breaking laws on taxis and hotels, but benefiting a lot of people). On a slightly different note, one thinks of the legal exploitation of the weak in legislation authorising railways and the enclosure of commons.

Perhaps one day new legislation will develop making sure everyone gets their fair bargain in freemium social media platforms. But by then new issues of fairness would have arisen in other areas (e.g. the issues which has already arisen with LLM training on a lot of text that was written and published before it was understood that such training is possible and commercially valuable).

Perhaps this is why new technologies are always greeted with a mix of both utopian thinking and existential dread. One never quite knows before the chips fall whether these developments will be benign or blow everyone up.