You can't really invest, because the investment opportunity is controlled by other profit maximising capitalists who will charge an arm and a leg for the opportunity.

You could find a profit maximising capitalist who would be happy to enter the market and compete for a fraction of the outrageous profits - that would make a lot more money than paying to invest as is more usual. In theory there only needs to be a handful or so and that would be enough to bring the market back down close to cost of production.

However, it seems likely that government regulation would disrupt that process somehow, otherwise it would have happened by now.