"There is one simple test"

Ezra Taft Benson said what he considers a test to judge what the Government should do and not do besides what is explicitly stated in the Constitution of the United States of America:

"There is one simple test. Do I as an individual have a right to use force upon my neighbor to accomplish this goal? If I do have such a right, then I may delegate that power to my government to exercise on my behalf. If I do not have that right as an individual, then I cannot delegate it to government, and I cannot ask my government to perform the act for me."
(The Proper Role of Government, Ezra Taft Benson, The Eisenhower Administration - ed. Published in 1968, http://www.latterdayconservative.com/articles/ezra-taft-benson/the-proper-role-of-government)

How does this test apply to different functions of Government, those that they should do and not do?

Recently salt is to be regulated to force companies producing food to reduce salt usage. I cannot force a restaurant or a company to put less salt in. I can choose not to participate. Welfare as the Government does it is theft, not charity. It is forcing a group to help others. This is not emergency relief that comes from a natural disaster. It is creating dependence on the the dole, the opposite of what it claims to try to do.

I am trying to know what the government should do besides enforce the law, establish and maintain a judicial system, provide for the military, and establish a currency system. Can someone help me?