Corporate Welfare for the Already Wealthy

Riddle me this, Batman: Why do cheap-labor conservatives think it's a bad idea to pay for Medicaid, food-stamps, Head Start, and day-care services for the poor, but it's a great idea to give a company with $9 Billion in profits (on $200 Billion in Revenue) a Billion dollars in corporate welfare?

I'm not sure that fattening the coffers of WalMart at taxpayer exepnse is in the interest of the nation. I can think of all sort of things to do with $1 Billion - health care, education, child care, public health, defense spending, transportation, etc...