Saparelli’s conclusion that the outcome of Vincent’s investigation won’t change the fact that she’s dead depicts a cynical worldview in which individual humans are powerless to enact real, positive change: that tragedies and miscarriages of justice will always exist, and that any attempts to rectify these misfortunes are futile and misguided in the grand scheme of things. As Leon attempts to justify his failure to inform Miranda about his connections to Vincent, he realizes he doesn’t have a choice but to go along with Saparelli’s orders. If Leon tries to include Mendoza’s testimony in his report, Saparelli will tell Miranda about Leon’s conflict of interest in the case, which will invalidate Leon’s findings and prevent him from being called back for future consulting work. Ultimately, Leon’s desire for future work wins out over his moral obligation to include Mendoza’s testimony in his report.