Possible new tax law

[king1]

as I understand the the government's intention at the moment is to collect more data, for more informed decision making down the track...

Can't see anything wrong with that, although I could see how those that are having data collected about themselves might be a bit anxious,  if they had something to hide... 
 
The problem is not with the wealthy folks doing things by the book, the problem is with those that choose to, either deliberately or because it is 'legal' under current law, mask their true incomes...

But fact finding can't be a bad thing...