Not sure if you really mean it, but you're kind of making the argument that a person that mindlessly shovels dirt from one hole to another in a circle should be paid. People are paid for the result, not for their labor.

Not at all. You're presuming that nobody can be taken off this hypothetical salary once they're on it, and that they would be placed on it indiscriminately.

Simple safeguards are already in practice in today's economy to prevent such circumstances.