OK, consider gambling. That is simply a kind of software that enables people to engage in behavior that turns out to be harmful for a large number of them. And, because of that fact, it is heavily regulated.

> What is the legislation you propose to prevent Facebook, or the millions of other existing or soon-to-be existing apps, from doing harm to people?

I don't know if we know what sort of regulations would help yet. But I do know that if we assume a priori that corporations cannot be forced to change their behavior because it might hurt the poor corporation, then we will never figure out the answer.