Answer:
Secular Humanist believe in what can be seen. So they would do what Christians would do with Money. As a Christian, one would (or should) pay tithes (10 percent of one's earnings) to the Lord's storehouse (synonymous with the church today).
There is nothing inherently wrong with money. As a matter of fact, devout Christians understand that the love of money is the root of all evil (1 Timothy 6:10). So Christians do not love money, but rather use it in its proper place.
Yes, The question "what you do with the money after you get it" is a great one. Secular humanist may give to the poor, feed the hungry, give money to charities, but if these things are done without love (God), then it is all for naught.
It is true that each person as to take care of their family, but we have to take care of God's house before anything else, even saving some for retirement. Also, we should enjoy our lives with the money we earn and kept after doing the proper things with it.