It is not only not obviously moral, it is immoral, if that means anything, for a government, or a person, to spend every last dollar on helping the unfortunate before spending any money on education, roads, defense, art, or even entertainment.

This seems a false dichotomy; the unfortunate will also be helped by money spent on education, roads and other measures which increase the common good (so long as they do not make the plight of the unfortunate worse).

Whether to spend money on medicine for the sick, education for those who cannot get access to it with their own resources, or art and etertainment by which a culture might examine these problems strikes me as being a bit like medical triage in an emergency room. Perhaps it makes sense to treat personal resource management similarly.