Lack of money is precisely why you should not go to graduate school, because graduate students (and post-docs, and adjunct faculty) in these areas already massively outstrip available funding. The claim that more people should go into the field would be more credible if there were good jobs available for those who already did.
Part of the reason for the lack of good jobs is that there is actually not much money put into cancer research, relative to Valley-type companies. Google's declared 2012 R&D budget was $6.7 billion. The National Cancer Institute's entire budget in 2012, which is parceled out among all eligible institutions in the country, was $5.1 billion. It's no surprise that, as a direct result, it's easier to find good jobs in the Valley than in cancer research: Google alone can offer more funding to aspiring researchers than the entire national cancer strategy can.
Part of the reason for the lack of good jobs is that there is actually not much money put into cancer research, relative to Valley-type companies. Google's declared 2012 R&D budget was $6.7 billion. The National Cancer Institute's entire budget in 2012, which is parceled out among all eligible institutions in the country, was $5.1 billion. It's no surprise that, as a direct result, it's easier to find good jobs in the Valley than in cancer research: Google alone can offer more funding to aspiring researchers than the entire national cancer strategy can.