It might stop us high grading our ore reserves for the now and leaving nothing in the future.
Nice sentiment, but try that reasoning with Bob Katter, whose electorate has Australia's highest unemployment rate of 14%. No mining, no jobs.
It might stop the gouging by directors of small mining companies that live on the backs of their naive investors via continual capital raising and dilution.
This is a totally unrelated issue, a profits tax will not stop this and in actual fact it would help with your first point.
It might help the wider economy by taking the pressure off the skilled work pool.
Mining is highly reliant on importing labor as in most cases the areas in which mining occurs there are low populations. Also see point 1
It might help the wider economy by decreasing company tax and increasing super.
You want to reward uncompetitive industries, with subsidies, how did that work out with the auto industry? Most people have an exposure to mining profits through their superannuation.
