My head cannon is that a society that places personal autonomy as a core value avoids utilizing surveillance of their people as a means of societal control. It just does not occur to them to place cameras everywhere because it is so antithetical to their core values. That is also a reason Data gets so much leeway to act autonomously. Aside from people who want to diminish that freedom, everyone is just fine with the blanket protection of personal autonomy. Check out the book Surveillance Capitalism by Zuboff. It highlights the evergrowing behavioral manipulation tech companies are utilizing with surveillance and unethical behavioral shaping. Considering Star Trek is beyond capitalism, it makes a lot of sense that they would stop the unethical monitoring of individuals.