Sorry random I have to say that's a pretty naive view...
A quick buck you say? If you didn't sell the mines/infrastructure rights, these mines/infrastructure would never have been built. Hence there'd be jobs, no terms of trade in your favour etc. We'd most likely end up like Ireland - correction, you might, as I'd be gone by then.
Examples
Who's building the terminals at Abbott Point in Queensland? (the apparently foreign-owned BHP Billiton)
Who's building up the new terminals at Gladstone such as WICET? (Several parties but not many are Australian)
Who's going to link up the Galilee Basin to Abbott Point? (Gina Rinehart + Chinese or Indians via Adani?)
Who's investing in BICET? (Xstrata)
Who's building all the multi-billion dollar LNG plants on the east coast? (Petronas, PetroChina, Shell, British Gas, MobilExxon etc)
Who's giving money to Gindanble? (AnSteel)
Who's giving money to Oakajee Port & Rail (Mitsubishi and Japanese banks)
Who's been building Port Hedland in the past and who's been helping build existing terminals at the east coast (the foreign-owned BHP, foreign-owned Rio Tinto, Anglo American, Xstrata etc)
Let me give you an alternative if you don't like it...
Go ask the Greens Senator for some $600bn, because over the next 5 years, this much will be needed to be invested in infrastructure.
If Mr. Brown can find that sort of money locally and keep ownership local, then that'd be great. Because without it, he can explain to all the people at Gladstone, Newcastle and all the new developments along the east coast railway systems and Pilbara railways etc why they now don't have a job and why the ailing banks will soon foreclose their houses. Hope none of you have a mortgage if that day ever comes.
My solution:
People who are uninformed should seriously be made to take a test before they can vote