Restructuring the tax system isn't that easy, I think that panel and Govt. body have to do a lot of work to keep in track of normal people to the whale from where there are getting taxes. Is That how it works in India, changing any kind of such monetary policy for tax evasion will create a lot of problems for the government in my opinion.
Yes, it creates a massive problem, because the largest tax evaders are the corporations who donate to their charities and put them on their boards after they retire from politics.