Yes. The icing on this psychological cake is that people have no idea about this effect.
Francesca Gino from the University of North Carolina has shown that counterfeit products actually make people behave more dishonestly. They cheat more in tests and they judge others as unethical with greater abandon. Even worse, they’re completely unaware of this impact. This effect is heavily ironic. People often buy fake goods to look good to other people. But Gino’s study shows that these products can affect our moral choices precisely because they make us look worse to ourselves. As she writes, “Feeling like a fraud makes people more likely to commit fraud.”