Thinking about the three examples I gave, I think it's more that the externalities of not doing these activities aren't priced in.

Tabloid press is fantastically profitable, but fake news over time will erode a great deal of social trust.

Closed source software might be individually advantageous but collectively holds back industrial progress. It's a similar reason to why patents were first introduced for physical goods.

And yes people voluntarily without kids should have to pay significantly more social contributions.