> You can tell that broad alignment between people is natural

It really isn't. The whole point of the market system is to collectively align people's actions towards a shared target of "Pareto-optimized total welfare". And even then the alignment is approximate and heavily constrained due to a combination of transaction costs (which also account for e.g. externalities) and information asymmetries. But transaction costs and information asymmetries apply to any system of alignment, including non-market ones. The market (augmented with some pre-determined legal assignment of property rights, potentially including quite complex bundles of rules and regulations) is still your best bet.