The phenomenal rise in the number of returns filed, income tax collections and GST filling post DeMo clearly suggest that it has successfully influenced people to pay taxes and restrain from black money.
Had govt not demonetized 500 and 1000 rupee currency as no more legal tender, Indian economy would have crumble and crashed down and from such fall India would not have ever recovered.
Mistakes make people wiser as one learns from it. But not the case with media. They become even more vicious. The liberal media were always right even when they lost the election.