McCloskey makes the case against well intentioned liberalism.
Unions raised wages for plumbers and auto workers but reduced wages for the non-unionized. Minimum wages protected union jobs but made the poor unemployable. Building codes sometimes kept buildings from falling or burning down but always gave steady work to well-connected carpenters and electricians and made housing more expensive for the poor. Zoning and planning permission has protected rich landlords rather than helping the poor. Rent control makes the poor and the mentally ill unhousable, because no one will build inexpensive housing when it is forced by law to be expensive. The sane and the already-rich get the rent-controlled apartments and the fancy townhouses in once-poor neighborhoods.
The importation of socialism into the Third World, even in the relatively non-violent form of Congress-Party Fabian-Gandhism, unintentionally stifled growth, enriched large industrialists, and kept the people poor. Malthusian theories hatched in the West were put into practice by India and especially China, resulting in millions of missing girls. The capitalist-sponsored Green Revolution of dwarf hybrids was opposed by green politicians the world around, but has made places like India self-sufficient in grains. State power in many parts of sub-Saharan Africa has been used to tax the majority of farmers in aid of the president’s cousins and a minority of urban bureaucrats.