Wikipedia, which is what passes for a library in Apipucos, tells me that both St. Paul and Shakespeare are looking back to Aesop’s The Belly and the Members (no doubt available on Project Gutenberg, or Perseus for it in Greek). It seems there has been a reversal of polarity: individualism was the language of rebellio, solidarity was the supposed virtue of the status quo. Two thousand years ago, nobody thought of equality — the cry of the oppressed was just for more for them.
Now clearly, equality as such cannot be a practical aim, because it could only be attained by interference that would preclude other essential freedoms; it needs to be translated into a Kantian regulatory ideal of fairness if it is to make political sense, perhaps along the lines of Rawls. To put it another way, we shouldn’t lose sight of the raw greed and narrow self-interest behind claims that owe their sole legitimacy to a larger perspective of social solidarity. Nose and face both must get their due.