You are of course correct, I should not have written economic theories when I really mean real-world economics. And I of course neither doubt that self-interest

You are of course correct, I should not have written economic theories when I really mean real-world economics. And I of course neither doubt that self-interests can be aligned with the interests of society nor that people realize that self-interests are not necessarily aligned with the interests of society. But when you look at the real world rational actors is often not much more than an euphemism for greedy actors. Exceptions not withstanding. While real-world capitalism without doubt enabled an enormous gain of total wealth that is hard to imagine in more fair - or whatever you want to call it - economic systems I see no way that you could argue that it was the best option at least for the last couple of decades or that we should or even could go on in the same way.