"San Francisco's experience" proves my case. I suspect that if you poofed one or two of the larger tech companies or VC firms and took the delta in housing prices from reduced demand/speculative pressure and put it towards building, NIMBY laws notwithstanding, you'd solve homelessness in SF. That is the magnitude of money (that is, our past and future time, energy, and belief in our own produftive capacity, converted to fungible currency) that is being siphoned from society in order to prop up an industry with, frankly, a mixed record of public good ROI. That's just one case of many.
The anti-moon mission people were right, in the end. The advances solely attributable to it were few (to ask someone to name them is akin to asking a government official what assets and missions, exactly, Edward Snowden's leaks compromised), and NASA and the government abandoned the effort not when the possibility of further advances dried up, but when the prestige of beating the USSR wore off. This, of course, is the fundamental issue: that the shininess blinds and then dulls, leaving the problems that were ignored still unaddressed. The people protesting the moon missions were:
*Environmental advocates
*Anti-war protestors
*Black and PoC Civil Rights advocates
Consider then, in good faith, the troubles that continue to rock our society, some 40-50 years hence. Interesting parallels.
On the other hand, welfare works. Full stop.
Like I said, we've been conditioned. And by "we", I mean "you."