LOL... true. I would feel much better knowing I would leave behind a couple hundred thousand for my loved ones. But you're looking at this from only one angle... you're not seeing the forest for the trees, you're... well, hopefully getting my point.
Also, I believe that even on the black market, reports show that kidneys sell for around $50,000 if fully healthy and functional.
Sure, in your scenario it is a great result. But what about the fiance or wife that some how sets up her husbands/fiance's death in order to profit from the sale of the organs? Sure, she may get caught, but the murder has already taken place...
That is only ONE other aspect to consider.
If you'd want to get 'my' support to legalize your version of organ sale, you'd need to come up with some sort of plan that would cover any such eventuality... I can't think of anything that wouldn't deter such horrific behavior, as I know how humans think... greedy, greedy humans.
I think an insurance plan that covers the value of your organs would be the most ethical approach, and it would also comfort my fiance in the event of my demise.... plus, I'd leave this world as I came into it.... ashes to ashes, dust to dust.
C