Jake--The way insurance works is the healthy pay for treatment the sick need. Granted your father, his job, and your mother paid into the system, but I'll bet if you look at how much they actually paid in it is far less than the cost of treatment they received. The insurance company doesn't just write that off. It is shifted to the premiums of all of the other people insured with the same company.
The only way the insurance company can stay in business is if their receipts from premiums are more than the cost of services. If they were going to charge one person more than the expected amount of medical treatment consumed the cost insurance would be too much for most to afford. Most on this board, probably you included, have paid more into the system than you have consumed. That excess went to pay for your father's treatment.
Thanks to a medical condition my wife has also used more than she has paid into the system. I know I could not have afforded her treatment if I did not have insurance and I will not be even for another three or four years, just for her surgery, not including follow-up appointments and ongoing medication requirements.
But when a long train of abuses and usurpations, pursuing invariably the same object, evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new guards for their future security.
Translation for the intellectually challenged: If the government screws the people too much, it is the right and duty of the people to revolt and form a new government.