- The work you're doing to make that 300k doesn't happen in a vacuum; it has an impact on the world too. Make sure it's not doing more harm (including the political donations that might get made by the owners you're making richer) than your donations are doing good.
- People aren't robots; intrinsic motivators are important for some. In some cases it can be worth making a smaller impact with your own hands, vs a larger impact that's unsustainable because your soul isn't being fed with a sense of purpose, because you're too far removed from the purpose.
I'm sure your approach works for some people, but I don't think it's an end-all answer to the question