Neil has been using the term "social value" lately in contrast to market value. In a market state, value is exclusively market value and if market value cannot be turned into sufficient profit to justify investment, then the project doesn't get done.
The three rolls of the modern state are provision of security, order and welfare. These have high social value but little market value in that the goods they involves are neither rivalrous nor excludable.
These are chiefly public goods that fall under public purpose. A state is chiefly concerned with social value rather than market value, so these matters fall under the purview of the state rather than the private sector.