In the context of OpenAI's evolution from a non$-$profit to a capped$-$profit entity, discuss how its corporate governance structure navigates the complex interplay between ethical responsibilities, financial objectives, and antitrust regulations. Reflect on the potential conflicts and synergies between maintaining ethical AI development, ensuring competitive fairness in the AI market, and pursuing profit and innovation. Consider the implications of OpenAIs approach for the broader AI industry and the future of AI governance. Your response should address how OpenAI balances these aspects and what this means for the AI sector at large.