Other than money, a really good reason to shut down Sora is that it was a horrible idea in the first place that went completely against OpenAI's mission to make AI benefit humanity and improve lives. Sora was like TikTok, an app already thought to waste time and ruin attention spans, except even worse because there was no real information as everything inside is AI generated. More than that, it had a dual use as it allowed generating fake footage of protests etc that people then reuploaded to other platforms to mislead people. There is nothing about Sora I can think of that benefited humanity, it was only a net negative and a race to the bottom for more extreme memes and desensitizing people to reality.