Do you support the "common good"? Give us your organs. Now.

The common good - it sounds like such a noble endeavor. Let's cut it down to its most basic and see where it takes us... Did you know that with our current healthcare technology, a healthy adult human body contains seventy-two transplantable parts that can be used to save the lives of that many people. Most of these parts of course can only be donated at death because you personally require them to survive, but several of them come in pairs or spares that you could donate and save someone else while not needing to give up your own life to do so.

Allow me to restate this, there are a lot of people currently dying without necessary organs while every healthy person on the planet has the capability to donate their organs to save many more lives than their own.
It is an obvious truth for the common good of the majority, that many lives saved are more important than one life sacrificed to this end. Several lives could be saved with just spare organs that don't require the inevitable death of the donor, but it stands to reason that if we're trying to do good for the group, we should do as much as possible.

Seeking maximum effect, a singular death and subsequent donation of seventy-two transplantable tissues can potentially save seventy-two other lives! Talk about doing a lot of good for a majority in need!
Given the mathematical obviousness of this and the fact that people are dying right now without organs when others could help, I propose a plan.

People right now are freely able to willingly donate organs, but this voluntary arrangement clearly isn't enough to handle the need. This is a crisis, but I'm here to help. I propose that we institute an organ tax. It's equally fair, after all every healthy adult has the same donation potential, so no matter what else you've done or achieved in life you can help your fellow man in this plan. I, and an expert panel will decide how helpful you are to society and by what measure you need to contribute. Somebody has to, we can't just decide for ourselves... lots of people would donate none, and that's the problem we have right now!

I know some greedy heartless folks aren't going to want to contribute and help the dying to live, they'd rather the needy just died! That's why this needs to be law. Obviously it's harmful to the majority in need for people to just selfishly cling to their excess parts and not serve a greater purpose. I'm not even proposing right now that anyone needs to make the most generous donation that would help up to seventy-two others, I just want them to pay their fair share and then the rest can be harvested upon death! That's the problem with this country though, we have millions of greedy people walking around hoarding excess life-saving organs while lots of other people literally die that could have been saved.

If anyone here doesn't see the wisdom and goodness of mandatory organ harvesting and wants to resist when we come to collect, then they may as well be killing those needy people themselves! We cannot allow that and must deter their selfish murderous behavior. If anyone does not pay their fair share willingly, I put forth that we set fines in the most useful form of additional donation requirements, perhaps setting it at maximum contribution upon our decision so that we can deter murderous organ cheats.

I know this sounds a bit harsh, but it's obviously only right and fair, it's for the common good of all and sacrifices must be made. Anyone not convinced by this and unwilling to immediately begin extracting their own organs or those of their neighbors should probably stop advocating collective superiority to the individual. The numbers are logically sound, so if you do argue for the common good and haven't gone to grab a scalpel to help the world, you're a hypocrite.