Some terms simply defy definition and thus can be twisted like a wax nose to mean whatever the twister so desires.

No concept probably illustrates this better than that of the 'General Welfare'. What in the world can such a concept mean? I don't think I can construe a more vacuous term than that.

There can be no such thing as a 'General Welfare' since only tradeoffs are available to men, and what is in the welfare of one will in all likelihood not be in the welfare of another.