People who don't like socialised medicine generally don't need it and simply don't understand it. The fact those people are generally from the upper echelons of society is a coincidence (/s).
We are lucky, for now, in Australia as we have managed to stop the politicians from shutting down our socialised medicine completely, though they are still chipping away at it. The conservatives are the worst, though they get plenty of assistance from others who should know better.
FYI: When talking about healthcare in America it would help the cause of those trying to keep and reinforce socialised medicine if people would stop calling it Obamacare and call it by its correct name - ACA. Reading posts on Twitter and elsewhere it seems that a lot of conservative voters simply don't understand that the ACA that they acknowledge they rely on is the same thing as the Obamacare that they passionately hate.