You seem to be belonging to the same category as Dr. Amit, the Horror incarnate. How could you beleive that poor people willingly donate a key part of their body? In most such cases the doner does not even know what he is losing. All he knows is somebody is paying a chunk of money. He is unfairly lured and made to lose a big value from his body for a platry sum. Once he comes to know about it he is sure to repent deeply. But, it would be too late.