The question is if it works well in all relevant aspects and not only some. I believe a fair investigation would reveal a little of both well and bad to everyon

The question is if it works well in all relevant aspects and not only some. I believe a fair investigation would reveal a little of both well and bad to everyone except the most die-hard ideological laissez-faire purist. One such relevant negative aspect of all-out competition is that trade wars between superpowers backed by massive nuclear arsenals poses not only a risk to the world economy but also to our survival as a civilization if not species. Working together for the common good seems indeed preferable in this case.