In a perfect world, when you realise that your company creates and fuels addiction in children, that company should be concerned about having resulting profits seized (fully!) and responsible decisionmakers criminally prosecuted.

I would argue that we fail completely at doing this (historically, too, see e.g. leaded gas).

This incentivizes companies toward net-negative behavior until it is fully regulated despite knowing better, because it is clear that it won't be really punished anyway and remain a net-positive for them.

It is a difficult problem though.