That meets the "can't criticize" criteria, but not the "are your masters" criteria, unless there's some sort of secret cabal of disabled boys ruling over us.
right, which means that Voltaire's quip, although clever as everything he said, did not happen to actually cover all the possibilities of censorship in every possible society.
In his time, certainly, the people you couldn't criticize were the rulers, in our time there is a wider range of people you can't criticize.
The statement makes much more sense for today's world if the "who" in the question "Who you can't criticize" is specific instead of broadly targeting a demographic. You won't get hunted down for saying "rich people are bad and should die", but if you start spewing facts with names and pointing fingers ("CIA is a terrorist organization, and this is why"), or e.g. in Greece you say "Marinakis is a drug dealer" publicly, you should start worrying for yourself.