One meaning of "daemon" is that it's a supernatural being that is kind of halfway between a human and a god.
Daemons often run with privilege, and so are (god-like), but are not the operating system itself (god). Daemons can do things on behalf of the human user which no program could do that the user could write and execute under his or her privilege level.
Maxwell's demon is really a demon in the evil sense because it perpetrates something "wrong": it causes all the gas to move from one compartment to another, thereby wrecking god-given thermodynamics.
Daemons often run with privilege, and so are (god-like), but are not the operating system itself (god). Daemons can do things on behalf of the human user which no program could do that the user could write and execute under his or her privilege level.
Maxwell's demon is really a demon in the evil sense because it perpetrates something "wrong": it causes all the gas to move from one compartment to another, thereby wrecking god-given thermodynamics.