High income doesn't mean upper class as much as a large amount of wealth does. There are many people who have modest incomes, but high wealth. Those people are

High income doesn't mean upper class as much as a large amount of wealth does. There are many people who have modest incomes, but high wealth. Those people are upper class. On the other hand, there are a small number of people with high income, but who have a lot of drains on their money (support a large family, donate a lot), and who I would not consider upper class because they do not have a large amount of wealth