Economists often claim that sociology and psychology are not “real” sciences — not like economics. Economics of course has more mathematical models and “empirical” results. Never mind that these results and models don’t correspond with anything in the actual world or how people really behave, but the math works out!
I’d say that 40-50% of psychology is probably wrong, maybe 20-30% of sociology, but probably 80% of economics is delusional or ideologically-driven (so if it is correct, it’s just accidentally so).
It is improving, though. Slowly. Maybe in a few hundred years economics can achieve the relatively-high standards of sociology.
Economics is no harder a science than the other social sciences. Economists don’t use math the way the hard sciences do anyway. That would be sticking with mathematical models. Economists try to deal in mathematical proofs. Apparently some budding economist (maybe Samuelson?) took a math course and was awed by the ability of the letters Q, E and D to be argument enders; not taking note that mathematicians make no claim for the applicability of mathematical methods (which are not empirical methods) and results to things other than mathematics. They just love having the last word; trouble is they’re incorporating subject areas well outside the realm of Platonic ideals like triangles or projective planes.