How Are We Not Like Karoun?

"What's the point of me and trying to get a job?" he asks. "Why do I even want that growth? And that's actually the question that I wanted to try to answer through these ayah." He says Allah will decide who gets what, so why should we fight for it? 'No matter what material successes, worldly successes will come my way or not come my way, that is in the end not up to me'