A player has to be held accountable for his actions on the ice, much like a driver who chooses to get behind the wheel at his own discretion. This is the responsibility that comes with a physical game with real consequences of physcial actions that should not be taken lightly.
If a player has his head down or is facing the boards, the player about to make the hit needs to understand that throwing one's elbow/shoulder into the head of the unsuspecting player or sending him face-first into the boards won't be tolerated. I don't think this message was sent with Malone getting docked a game while the unsuspecting player may never play hockey again.
The punishment has to be enforced uniformly, regardless of the underlying injury or lack of injury that took place. I personally think Malone should have gotten something to the effect of 10 games (25% of the season) regardless of whether Martin got up and skated away or was carted off in a stretcher. By basing the punishment on the consequences of the poor decision, that undermines the integrity / spirit of what folks are trying to get cleaned up.
Until we are willing to hold players accountable for their actions and the choices they make (and Malone made a very conscience choice), then we will continue to see broken necks, paralysis, and other incidents that none of us (I think) want to see happen in the game we love. If we stiffen the penalties, we wll absolutely see hits to the head, boarding, etc penalties drastically reduced. Case in point, last time I checked, there isn't too mcuh fighting in NCAA hockey because it comes with an automatic 1 game suspension. Imagine if boarding or a hit to the head came with an automatic 5 games?
We should all look at the game as if our own children were out there. Somehow, I think we would want more safeguards in place. The consequences of these cowardly hits are not worth it, regardless of fans getting a cheap thrill every now and again.