The inventions did not arise merely from the minds of the engineers but of the problem constraints placed upon them. Space research has been beneficial for technological development because of the exotic problems which have created solutions with wide applicability.
This is not to say they would have not arisen through land based research but invention needs inspiration as well, not just financial incentives.
This is not to say they would have not arisen through land based research but invention needs inspiration as well, not just financial incentives.