Yes sure,
All the leaks came from either IT consultants or Interns. In case of Panama papers, It is former employee or interns from Mossack Fonseka who just passed the list of customers and other information to a German journalist. Wiki leaks is out of scope, you must talk about Swiss leaks and Lux leaks.
Note that none of the leaks are originated from tax authorities or Intelligence agencies.
There is nothing to achieve. In fact, from a legal point of view, many files may be legit. I guess the people who transmitted this information wanted to show that some people or companies tried to︀ lower their tax by doing tax planning with Panama.
For instance, you have a company︁ in the UK and you create a company in Panama that owns your licenses, trademarks︂ and copyrights. The Panama company then bill the UK company and you pay 10% of︃ tax rather than 20% of tax. The idea of the whistleblowers was to expose people︄ who do that.
Did it change anything? no.
Panama papers is not a problem, FATCA,︅ EU FATCA (2011/16 directive), CRS from OECD will hit 1000 times harder than panama papers︆ for those who are unprepared.