Neoliberal thought has been criticized for supposedly having an undeserved "faith" in the efficiency of markets, in the superiority of markets over centralized economic planning, in the ability of markets to self-correct, and in the market's ability to deliver economic and political freedom. Economist Paul Krugman has argued that the "laissez-faire absolutism" promoted by neoliberals "contributed to an intellectual climate in which faith in markets and disdain for government often trumps the evidence". Political theorist Wendy Brown has gone even further and asserted that the overriding objective of neoliberalism is "the economization of all features of life". A number of scholars have argued that, in practice, this "market fundamentalism" has led to a neglect of social goods not captured by economic indicators, an erosion of democracy, an unhealthy promotion of unbridled individualism and social Darwinism, and economic inefficiency. Some critics contend neoliberal thinking prioritizes economic indicators like GDP growth and inflation over social factors that might not be easy to quantify, like labor rights and access to higher education. This focus on economic efficiency can compromise other, perhaps more important, factors, or promote exploitation and social injustice. For example, anthropologist Mark Fleming argues that when the performance of a transit system is assessed purely in terms of economic efficiency, social goods such as strong workers' rights are considered impediments to maximum performance. He supports this assertion with a case study of the San Francisco Municipal Railway, known as Muni, which is one of the slowest major urban transit systems in the US and has one of the worst on-time performance rates. This poor performance, he contends, stems from structural problems including an aging fleet and maintenance issues. However, he argues that the neoliberal worldview singled out transit drivers and their labor unions, blaming drivers for failing to meet impossible transit schedules and considering additional costs to drivers as lost funds that reduce system speed and performance. This produced vicious attacks on the drivers' union and brutal public smear campaigns, ultimately resulting in the passing of Proposition G, which severely undermined the powers of the Muni drivers' union. Other critics contend that the neoliberal vision de-emphasizes public goods. For example, the geographers Birch and Siemiatycki claim that the growth of marketization ideology has shifted discourse on public goods to monetary rather than social objectives, making it harder to justify public goods driven by equity, environmental concerns or social justice. American scholar and cultural critic Henry Giroux alleges that neoliberal market fundamentalism fosters a belief that market forces should organize every facet of society, including economic and social life, and promotes a social Darwinist ethic that elevates self-interest over social needs.