The problem is, we are measuring success by what we see. We only see the success, not the struggles behind the scenes. What happens off the playing field and off camera is what determines success and it’s how we should be measuring success.
The hearth and the Salamander can also mean happiness and if Montag chose to be happy or not. The two things in his life his home and his work. Did it really make him happy. He chose happiness over this home and his work by reading the books.