The Jews are the living embodiment of the minority, the constant reminder of what duties societies owe their minorities, whoever they might be.
I've always been driven by the concept of equal justice under the law, but only the rich can pay great sums of money for legal assistance and that puts them at an advantage over the poor.
One of the reasons, surely, why women have been credited with less perfect veracity than men is that the burden of conventional falsehood falls chiefly on them.