Yeah it would be/should be impossible. What's the point of having a law/ethics code that says "you can't give a gift to government employee X" but also a stand

Yeah it would be/should be impossible. What's the point of having a law/ethics code that says "you can't give a gift to government employee X" but also a standard that "you can give unlimited gifts to their children, spouses, cousins, friends, etc"?