 Consider abuse. It has been alleged that medical students are frequently abused by verbal insults and denigration and that this abuse may leave long-lasting emotional scars. It is also sometimes claimed that medical interns are exploited, that they work long hours for low pay. The contrast is just right. There is no reason to think that anyone gains (in any normal sense) from abuse, but it is at least plausible to think that the hospitals or patients gain from the exploitation of interns.