The Ten Commandments in the Old Testament of the Bible are very clear about this. All religions contain such rules. And yet think about how important to the well-being of a community this commandment is. If you want a donkey, if you want a meal, if you want an employee, don't complain about what other people have, go get your own. The tenth commandment sends a message to collectivists, to people who believe wealth is best obtained by redistribution.
Collectivism is silly, deceitful, a sin.
It's also cowardly. We fear the power others have over us. And wealth is power. So we fear the rich. Take a midnight stroll through a rich neighborhood then take a midnight stroll through the U.S. Capital.