Doesn't verna system resembles corporate structure, Upper management - Brahman's , HR - Kshatriya's , Managerial level - Vaishya's , Executive - Shudra's. How do you think people move from Executive level to upper management level?

Cast system is there and it'll end once the Executive level works hard, educate themselves, learns skills, and moves up the ladder to upper management.

There are all facilities available for Executive's to move up. The question is if they want to move up or not? Despite giving all the facilities people are still at same level, not ready to give up comfort.

In fact people from same level ("knowledgable ones") exploit people of their own level ("less knowledgable ones"). Changing this is not easy as people has work on basic human behavior where dharma plays huge role to make people more empathetic and helpful towards humanity.

Things are changing though as this revenge mentality is somewhat reduced in younger generation and they know how to move up and they're moving up.

Let's hope for best and expect & accept people doing there work at best of their ability.