Equality of outcomes

Is income the only measure of economic equality?

Why does Australia reward those at the top more than some other places? (examples shared in lecture included University of Melbourne's Vice Chancellor, Australia's Prime Minister who earns more than Barack Obama)

Why does Perth have a high proportion of millionaires according to some measurements? What are some externalities related to economics and income in Perth?

What are societal impacts of people who are millionaires not perceiving that they are wealthy?