Even higher budget that the defense and the weapons industry?

The information is now abundant, but it is sufficient to view for ex. the documentary "Forks over Knives", see the official website  

To see that 'healthcare' is not 'caring for health' but curing diseases, you don't need to watch a movie or read a book (although reflecting about why this is the case is of course still interesting and useful). The new insight that this film may foster, however, is that (good research showed) the correlation between our food habits and our diseases is incredibly high; and (perhaps even more incredible) — the correlation between our (and our doctors'!!!)  ideas about good nutrition and the results of good research is practically zero; the correlation between our ideas about food and interests of food and other industries—close to one!

Read this vignette (text between two '*'s) to get an idea about how we may have gotten there.