When it comes to working in US every person north or south is a fraudster for sure. Whether you are Andhraite, or Keralite, or Mumbaite, or a bihari only that Hyderabadis (AP people) are smarter in creating fake degrees or experiences and go better than other people for sure. It just makes them very smart and mobile and with right connections and other pretty much losers.
The other fact being South Indians definitely work in smart jobs by atleast 2:1 compared to north indians is a given fact!. If you see that you will never find a south indian taxi driver or a shop worker or a donut vendor (gujju speciality) for sure at all. Hardly south indians are doing such stop. I am not saying north indians aspire to be taxi drivers and so on, but it is just that the fundamental mindset because many north indian states are in much worse state that Southern states and the normal northindian is much different than a relatively prosperous south indian that's it!.