"makes me think of the rabbi who asked how it could be that God often showed himself to people in the olden days whereas nowadays nobody ever sees him. The rabbi replied: "Nowadays there is no longer anybody who can bow low enough."
Saying it's outside of your control isn't entirely true. However, I do get not everyone can get to the center of that diagram; for some people it is within their control and for some it is not. To blindly dismiss it as a lack of control is a form of learned helplessness, however small, which for many is a root that creates depression. If you're depressed, this may be something you want to talk to a therapist about.
The question, then, is how do you balance: 1) making enough money for food and shelter with 2) your intrinsic values? Also, will making more than enough money help you further achieve your values?
The diagram presents a framework to find an optimal solution. "That which you love" is a function of your intrinsic values. The other 3 circles will help you efficiently convert your time into money to support what you love. I guess the better diagram would somehow convey the fact that, ultimately, what really matters is that which you love.
The venn diagram has helped me. I'm lucky to be blessed to be in the center of it. In my experience, the venn diagram is correct. It represents what I've gone through quite well.