If you have a high IQ and are good at math go into finance. If you have a high IQ, strong social skills but are bad at math go into law. If you have a high IQ, a good memory but weak social and math skills become a medical doctor. If you have a low IQ but are attractive marry someone rich. If you have a very low IQ get on government benefits for some disability and work at an under-the-table job.
If you have a low IQ but are attractive marry someone rich.
I'm not sure I would count that as “your income”, though in jurisdictions with easy divorces and large alimony it might be as good for all practical purposes.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.