The Increase in Cancer is a Good Thing

Why it's good news that more people are dying of cancer. 

Since 1980, the share of the global population that dies of cancer per year has risen by almost 20 percent. But this isn’t because cancer has become more dangerous – it’s because of rising life expectancy. Cancer is much more common in old age, and more people now survive to that point. Age-adjusted cancer death rates have actually fallen by more than 20 percent
Stefan Schubert

This is also a good thing to keep in mind with health statistics in general. Better hospitals get more difficult cases. Longevity in general is not a great measure of a society's health (though it's a pretty good measure of yours). The percentage of people dying of a particular cause has a lot to do with the causes that have dropped off the list altogether.