I feel like the US needs another "New Deal" type of program. I understand the dangers of inflation when money is printed indiscriminately with no value produced

I feel like the US needs another "New Deal" type of program. I understand the dangers of inflation when money is printed indiscriminately with no value produced to back it. What I still fail to grasp is whether there are such dangers when the money is used to pay the citizenry for creating public infrastructure, public health care, teacher salaries, basic science research, et cetera. Such investments in the country's future seem essential and tragically low for this economy. Or is the only root cause of objections to this type of government spending moral, not economic?