What are causes of injustice?

There are certain common causes of injustice. They include ignorance, when a lack of knowledge of others and situations can bring about prejudice; fear, as a means of protection against a potential threat; wants, when someone acts to get what they need or want, putting another at a disadvantage as a result; and mean spirit, as some get enjoyment from the mistreatment of other for no other reason than they can.