That would be for the same reason they have not copied other culture success stories. Because it is hard work, because it forces you to interact with people who may not like you and it means taking risks.
These are all things that most humans avoid.
The BeeGees had the answer to why the Jewish people have done well while others have not. It lies in the title of one of their songs “Staying Alive”.
That is a great incentive to be creative in the face of diversity and annihilation. Having a god to look to for guidance, as well as written laws and guidelines for behavior, proper health practicies, and social cohesion also help a people survive.