I have also been at that point and so have many others. There is even a whole global movement founded on the question: how can I use my resources to do the most

I have also been at that point and so have many others. There is even a whole global movement founded on the question: how can I use my resources to do the most good? It’s called Effective Altruism (EA) and is gaining some traction, especially in the Valley. One EA affiliated organization 80000hours.org focuses on the question on “how to do the most good with your career?” and seems especially relevant to your question. There is a lot of insightful material on career choice in general (e.g., thinks to think about) but also concrete guidance in the form of cause profiles. In the end, finding a path that’s right for you is always challenging and you shouldn’t discount things like motivation and comparative advantage if you are trying to have an impact. 80000hours.org may provide somewhat personalized coaching and recommendations if you send them a mail and explain your situation. But just reading the materials on that site should give you a great starting point to make informed decisions without the fear of doing the wrong thing. You can hardly do more than try to get the best evidence and make an informed decision after all!