Senator Knight gets stabbed in the heart with a poker from his brother, and later is seen perfectly fine at election night. Now earlier Senator Knight said that he had two clones, and had already had a heart transplant from the first one. Did he fix his damaged heart from the second clone or was it in fact his clone speaking at the election night, and not the real Senator Knight?
Well, they do make a big show of how the clones are used for parts at the end of the film. When Knight is confronted about Clonus by the reporter, they go from the sound of a heart rapidly beating to a shot of the frozen Richard with a big cut on his chest. Evidently, they transplanted Richard's heart for the senator, maybe a kind of Avatar-like genetic compatibility thing.
As MST's Paul Chaplin notes, "Since the older clones (in the world of the film) are really getting on in years, some of them nearing forty and even fifty, evidently this top-secret project has been around since at least the 1930s. Unless I'm mistaken, science in the 1930s consisted almost entirely of spindly rockets rising twelve feet and crashing back to the ground. So the movie's implausible, I guess is my point."
Didn't you see the old eye-patched guy's ring? It was a pyramid with an eye in it. That means the Illuminati were running the Clone farm, which means they would probably have access to Applied Phlebotinum like the secrets of Atlantis, Roswell UFO technology, the Ark of the Convenant, and the knowledge from the legions of Hell. Human cloning would be easy for them.
"Another thing: the great majority of these clones would never get used! Most of us go through life and never need a transplant of any sort, so what you'd have is a bunch of really old clones, hanging around, expecting to be entertained and fed. Which would be okay; they seem fairly easy to keep happy, but what would be the point? I ask you."
Well, what you have are clones who (if they don't use Rapid Aging technology) will be 30 or so years younger than their beneficiary, and live substantially healthier, less stressed lives. So what will likely happen for a good chunk of clones is that they will go through "life" without ever being called in to be harvested, and with their beneficiary dying while they're in their 50's or 60's. In which case they can sell the clone's organs to other high bidders, and even though they aren't at the prime of life will likely still fetch a very good price for being in extreme good health.
Also, who told Senator Knight that Richard had the tape? And how did they make the leap?
The guys at Clonus told Senator Knight about his brother's clone escaping with the tape, and probably told him that the clone might try to contact his brother.
Old!Richard is ostensibly murdered by his brother's goons at the end, so why'd they bother freezing Clone!Richard afterwards? His specific organ recipient isn't around anymore. That said, as a clone of his brother Richard's organs would likely be usable in the event that Senator Knight needed anything.
Considering how much money, time and effort it would take to raise of just one clone, would you just throw away a perfectly good source of potential organs to provide for a lesser client? It dosen't take any effort to freeze and store them.
And just how useful is this whole idea anyway? The vast majority of people will go through life never needing an organ transplant. Think of the hundreds of thousands of dollars and decades of time it takes to raise each of the clones to adulthood, keep them in peak physical condition, and then preserve them on the off chance that one of the important people they were cloned from needs a liver or something on down the line. With that amount of time and resources, surely more efficient (and humane) methods could be found to secure a compatable replacement part.
It's the Illuminati, they have resources to burn. Plus the other possible uses for clones had yet to explored, not just potential organ donors but also infilitrators, cloned armies, slave labor. Those scientists were't just content to let the clones grow up, they were also "monitoring their interaction," performing all kinds of experiments. Clonus is described as a "self-supporting center of research" after all.
Transplants might be more popular if there was no chance of rejection (clones being genetically identical to the progenitor, though I doubt it's that simple) and there was a larger supply of organs.