The really rich don't pay tax. Income is just something one 'earn't' over a particular period (say a year).
Just because I 'earn't' in one year $1m doesn't make me rich. For example a sportsman (person) might have earn't $1m in one year but whilst they are high income (for one year) they are not necessarily rich.
Assets (and control of assets) is a key to improving equality within the taxation system. In other words, seriously rich people who control / own assets in Australia need to contribute to the Australian taxation system based upon the economic contribution (value) of those assets increasing.
