Any political ideology involves some idea of the state of fiscal spending and tax scheme. And the practical tools of public policy (whether laws, regulations, taxes, or government subsidy programs) are directly influenced by the ideology of officials who create the advisers they hire, and the voters who elected to the first.
....And since we have an ideology formed, it acts as a "filter" that we use to make sense of the reality around us. As explained Gerald Smallberg...(see "Bias is the Nose for the Story" on "This Will Make You Smarter", 2012), humans do not appreciate the objective reality to filter the incredible amount of data they receive... Bias says Smallberg "is an intuition-a sensitivity, receptivity, which acts as a lens or filter our perceptions [...] These biases mediate between our intellect and our emotions to create, from perceptions, opinions, judgments, categories, metaphors, analogies, theories and ideologies through which we frame the way we see the world." This notion...is related to the argument of Daniel Kahneman (a psychologist and Nobel Prize in Economics in 2002, see "Thinking, Fast and Slow", 2011) in the sense that our brain cohabiting two systems, one operating biases..."automatically and quickly, with little or no effort, and without feeling voluntary control" and another that "directs attention to activities that require mental effort, including complex calculations [...] and are associated with the subjective experience of agency, choice and concentration".