Universal health care isn't "free": everyone pays a reasonable amount so that nobody has to deal with catastrophic expenses when serious illness happens.I always have to chuckle to myself when people talk about free health care because someone is paying for it through taxes, the money just doesn't fall out of the sky as the Greeks found out just a few years ago and tried to re-sue Germany for WWII reparations since they squandered the rest in a welfare nation. Once you hand over the the money and power of choice to a bureaucracy then you are subject to the whims and limitations of whoever is running the show at that specific time period. As far as the OP goes I'd say the word "elective" is key and yes I believe that if one hands over that power to someone else then they have the right to prioritize, like it or not they did it to themselves.
It also has the side effect of reducing costs, partly by encouraging people to get checkups and preventative care (thereby nipping problems in the bud before they become expensive acute problems) and partly by the effects of monosony (or near-monosony) on the purchasing power of the health care provider when purchasing goods and services.