Interesting because of the psychological insights into not how all people are, but how people make up theories in general. Same way religion has scientific significance in an anthropological sense.
The problem is that we still don't have a proper pattern recognition. We could discard all the soft sciences such as Economics, Sociology or Psychology.
What hard sciences could replace economics and sociology? They're not very rigorous, but they seem to be useful. Psychology also takes some load off psychiatrists