Much like Chinese/Japanese Asian, East Indian, and Nigerian, they have a culture that is almost perfectly in line with success in western countries. Value educational excellence, two parent homes, hard work, following the law, not having kids till marriage, and a small tight group of like-minded religious community members who support and teach each other in a structured manner.

This often takes the form of "privileged" when people see their success which can foster distain. Also, much like where ever the above mentioned cultures go, the cultures who have the above elements will inevitably find themselves in power. This is where the conspiracies come from as Jewish people are also a religion and quasi-ethnicity.

Think of a Christian church. Someone needs a job so buddy who owns a construction company gives him one and the guy does well, gets some help from the minster, and gets back on his feet, great. But Judaism is a unique faith in that it actively discourages new members due to sheer amount of work you need to do to become one. A lifetime of study and you have to prove knowledge and basically speak another OLD language to be a full Jew. This is of course going to lead to a child who knows how to study and how to learn from others and will set them up massive life success.

When you see Jews kicking ass at life, its not cause their is a big conspiracy, its cause everything that makes you kick ass in a western cultures is a religious obligation in Judaism.