1
Mate, they can't do most of what you say LEGALLY, it is governed by ASIC. If you want this to change go to your local member of parliament and tell them the red tape designed to keep of bunch of bureacrats in jobs isn't good enough. Then tell me how that goes.
As for international investment, you can't just invest in whatever you want wherever you want, there are international laws to tend with.
We live in one of the most regulated countries in the world, thinking outside of the box is not encouraged and when it does happen it is quickly muffled.