Well, I guess we should go and ask Robert Goddard about the point in designing a liquid fueled rocket in the first place. A possible commercial use obviously was not a feasible reason, since this would have involved too much science fiction...
Whatever, I also have the feeling that you neglect the impact of space station technology on a national economy. Billions of $money spend on a high tech industry, engineers, technicians, cleaning stuff and so on and the synergy effects of all that high tech stuff in a economy that highly depends on technological personnel and know how. Of course we could have spent the money on high tech weaponry as well, but I prefer a space station.
However, I think this is becoming off topic.