There is certainly a large internet subculture that places undue moral value on space travel.
80% - Science and its marvels 15% - Humanity survival (IMHO not possible) 5% - So we know more and more and somehow fix problems where that knowledge may be applicable (is that what you're calling moral value)?
I do think that we should be better off spending money elsewhere. I don't know why Trump is so pro-space travel and stuff.