I misread what you meant by drain, I apologize. I would like to ask you a question, Stoked. How much should we allow an individual to drain our medical resources until we don't allow him or her to drain medical resources anymore?
I personally am an advocate for the drains of society because I am one myself. I may not need much medical treatment and resources now, however, the time will more than likely come when I will need to become a drain on resources in order to live. The members of our society that drain the most resources such as the elderly, the disabled (both physically and mentally), and the children should be invested in because they are a stark reminder of our shared dependency on others. I don't believe that an individual can ever become too large of a drain.
As I am typing this, however, I am already thinking of a scenario which contradicts what I just typed. Suppose an individual is brain dead and is on full life support and ventilation. He or she simply cannot survive without full medical treatment. I do not believe there is anything immoral about letting an individual in this state die naturally. However, I believe these scenarios are highly individualized and should not fall under a blanket statement.
Sorry if my post went long. I did not want to pose a question without taking a stab at it myself. I'm curious to hear what you think.