By that same logic the US should immediately stop giving foreign aid to developing countries or investing in other programs since we still have homeless people here. The reasons why entities spend money on specific things is not a univariate. Also, there is a whole meta discussion to be had about what sparks creativity and innovation, I have a pet theory about over abundance of resources creating stagnation and dulling people's motivation and creativity. Beyond a certain point, throwing money at a problem can be counter productive.

At the end of the day, results matter and SpaceX has shown results.