If Big Pharma has theses cures, does that mean that they haven't patented them? So someone else could produce them anyway.
A patent (in the US) will last you 20 years from the date it is filed. Drugs are patented before testing and optimization, by the time human testing is complete and approval given, they'll be lucky to have 5 years left on the patent. They need to use this period of time to generate revenue which covers the cost of production, marketing and the R&D which went into that drug and the hundreds of others which never made it to the shelf.
Or you're just naive enough to believe that scientists don't follow the almighty dollar too. Next you're going to tell us lee Harvey Oswald killed JFK.
As a research scientist, trust me, I could earn a heck of a lot more money and work a heck of a lot less hours if I was a plumber. Yes, we do this in part for the paycheck, in that everyone needs a job these days. Need something to pay for the rent and the food on the table. The paycheck isn't a large one, especially not with 10 years post-high school with no serious earning.
If you want financial gain, a trade is a wiser option than getting into science.
Just one of the many forms available to us. In addition to processed food and wAter. 50 percent of everyone we know we most likely die of cancer or heart disease. How cheap is it to eat food that won't kill you? You need to fear science not satan.
Do you know why ~50% of people (in the West) die from heart disease and cancer? So many people die from those two causes because we've done such a good job of getting rid of the other things that kill us. For the most part, in the West child mortality is incredibly low and we aren't starving or dying of infections but no matter how much we understand the human body, something will always kill us. The heart is an engine which wears out (yes, some lifestyles certainly help you along with that) and cancer occurs because of the errors that build up in our DNA (again, this can helped along by lifestyle choices).