Here is a posting that will appear in three parts on successive days. It is a kind of mini-questionnaire:
Consider someone who receives income at the level of the 10th highest percentile of the working population and compare it with the someone whose income is at the 90th percentile. Obviously one will be a multiple of the other.
What level of multiple would make you uncomfortable?
(The idea is just that people consider the question. People can post an answer if they like. A second question will be posed tomorrow.)