Maybe, but he's kicking out the other drummer so that this guy can play in the "main" band. Plus there's a hint of romantic attraction from the girl.
For me, until the end the film was entirely about being "consumed by passion, at the expense of all else". But the ending seemed to suddenly want to redefine the film as "persistence pays off in the end", which is a very American ending.
Of course, I'm probably reacting in this way because most of us here do what we do out of love (or possibly even "need"). I doubt that persistence will "pay off" (in the material sense) for any of us.
I mean suppose some divine power could tell us that we will NEVER make any money in the music industry, and we will never reach commercial success, and that if we sold all our gear and bought shares in Company X, we would spend the rest of our lives in financial security. How many of us would do it?
Thus ends my Thursday morning "meaning of life" discussion.