Since about WWII at the latest, a certain group of economists, think Chicago, have tried their stinking best to best recognized as scientists, an attitude that culminated in the launch of the faux Nobel Prize in 1968. They produce serious looking formulas and graphs up the wazoo, which the media reproduce alongside interviews replete with lofty terminology, and the general public has fallen for the trick: ridiculous though it may be, the field has acquired a scientific aura.
Why did and do they want this? Because trillions of dollars worth of policies based on their ideas gain critical respectability if they can make themselves look credible and in control. So it’s no surprise that the entire effort has been carried by the support of virtually unlimited amounts of money from the finance industry, as well as 99% of the ruling political classes.