re"they do their best to cheat those they are hiring" - yes, because there are different rules they apply to Jews vs. non-Jews. https://www.myjewishlearning.com/article/legal-issues-in-judaism/ "The Talmud is full of laws that pertain to non-Jews, and many of these laws seem to betray negative attitudes about gentiles. Thus according to the Talmud, one doesn’t have to return a gentile’s lost object, because it is assumed that he or she wouldn’t return a Jew’s, and a gentile cannot be a witness in court because it is assumed that gentiles are dishonest. Other laws, such as the prohibition on eating the cooked food of a non-Jew, were meant to limit the interaction between Jews and non-Jews." So basically, Jews assume the worst about non-Jews and that justifies treating them worse than they would treat other Jews.