The Padres should keep LaChappa signed to their team so that he can continue receiving health care that he needs. The Padres show the world how professional baseball world is not all that cold and stiff, and not just about competition and winning the game. Keeping LaChappa signed to their team they also prove that they care about their team and its players.
He needs health care, and they have been generous enough to give it to him for all these years. The owner of the Padres is a very wealthy man, who can certainly afford to do it. There is no reason for them to suddenly stop giving him health insurance, especially if he needs it so badly.
The Padres should keep LaChappa signed to their team so that he can continue receiving the health care that he needs. It is a good thing to do, and not such a big financial stress on a wealthy baseball team. Furthermore, it is some good PR for the Padres club.
While the sentiment is nice, the Padres are not a heath care facility. The opportunities afforded for health care coverage offered by the MLBPA is not a catch-all charity, and treating as such sets a poor precedent. If LaChappa takes up room on the payroll while not providing value on the field, the Padres are under no obligation to him.