Discussion on answer by Grade 'Eh' Bacon: What does it mean for Bill Gates to have an income of $0 dollars? What word would have been more appropriate than "income" is?

Imported from a comment discussion on https://money.stackexchange.com/questions/146575/what-does-it-mean-for-bill-gates-to-have-an-income-of-0-dollars-what-word-woul/146577#146577