Increasing accountability is a matter not of shifting behaviors per se, but shifting mentalities. It’s only with a critical mass of people who understand private property in some aspect that social reform happens. Legislative prohibition, or the use of fear to promote or discourage certain actions, merely changes the manner in which mentalities manifest (e.g. prohibiting alcohol empowers mobs, prohibiting certain types of speech empowers those who benefit from a naïve society, etc.).
But there is the argument that people won't change for the better unless it gets written and passed into quote-unquote law for them to do so, through certain actions and restrictions. And to think people would just change of their free will is plain stupid.
But history is an attestation of human beings becoming freer and better off materially and spiritually, thanks to continuously accumulating material and mental capital, and this is most often in spite of the state and whoever happens to be running it at the time.
What’s more likely, for people to change their concept of private property and freedom, or for the majority of people to live in fear sustainably? No empire in history has lasted. People somehow wise up long enough to get free of even the most brutal dictators. The lack of a stateless society doesn’t point to unlikelihood of its future, it only tells of what is past. And over time, the trend has been towards an increase of freedoms, a decrease in privilege by force.