Revenue implication makes sense as a priority for a business, it should be considerably less of a priority for a government. The degree to which the tax code subsidizes whatever a business cares to try regardless of the outcome is already clearly more than adequate to give most industries massive lobbying budgets, so I don't think the economy is going to break if we stop doing it. Businesses are already significantly insulated against risks of various kinds, including in many cases criminal liability for risking people's lives. We don't need to be creating perverse incentives in the hopes of making them less risk-averse