The problem in the public domain is never a problem of science or statistics, but a problem of subjective cognition, consciousness and imagination. In the social field, the subjective feeling of the people is the most important objective fact. 
when discussing public policy issues, seemingly accurate figures are not as important as officials and experts think. On the contrary, if the people of a country feel their tax burden is heavy. In that case, the country's tax burden is heavy, no matter how low the macro tax burden calculated by experts is compared with other countries.
Sometimes the scientific formulation of public policy requires us to stay away from data analysis