Human tend to pay attention to visible things, neglect things that are invisible. We see the individual people, forgetting the connections among them forming groups. We thought characteristics of the actors in a system determine the outcome, while actually the institution framework (including culture) often plays a bigger role. Bias of quantity (growth) over quality (development), wealth over happiness or health are similar misperceptions, which is the ignorance of intangible.

Invisible / intangible / less salient does not mean they are unimportant. Neglect them and you can be in trouble without understanding why it happened in the first place.