This is False, because a code of ethics contain principles that influence what decisions people make.
If your organization did not believe in honesty but rather in how much money brought in, they they would surely eventually do something dishonest if it benefited the company.
Whereas, if your organization has a code of ethics that believes in making honest decisions, members of your organization would be less likely to do something dishonest like accept a bribe.
Hope this answers your question, and May the Force Be With You!
-Jabba