No logical reason to quit if you are paid well and feel respected by your employer. Don't risk losing your job during this difficult and uncertain time. If you have bigger dreams and a clear plan to establish your own business then you can leave to fulfil your dream.
The people in the front cannot really be helped. Being faster than the fastest? More intelligent than the most intelligent?
Just a simple example: from whom could Einstein, or Newton, learn? They defined their own challenges, and made their best to solve those challenges.
Since you admit that there is no one there good enough to help you, why do you expect ...