Commercial R&D and exploration serves one purpose: to enrich the stockholders' portfolio. Yes, there's a trickle-down effect in that any technological or intellectual advances will become available to the public eventually, but at a cost whose primary concern is profit. That profit will be a margin applied to the research phase and the manufacture.
In other words, commercial R&D has to be useful. And the profit "cost" yields a strong incentive to insure that the R&D has positive return on investment. These are huge advantages over government R&D which neither has to be useful or provide more benefit than cost.
Public investment in R&D and exploration is to the direct benefit of the entire nation and its allies. Derivative products will eventually be sold for a profit but the profit margin will only be expected to cover the manufacture costs, not the research phase.
In other words, tremendous costs, paltry returns, and the real R&D gets disguised as "derivative products".
Ultimately we pay for everything we have, at the store or via taxes. The question is: do you want to pay profit mark-up on the research?
Of course. The real question is why do you think public research has any advantages at all? For example, when I pay at the
Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/W2ROBMoa8_Y/story01.htm
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