New technologies that promise to extend life and decrease pain involve innovations that require extensive scientific research.
Background
Investing in new life-saving and life-extending tech is pretty risky: You have to put up a ton of money (capital) to pay for the research, and there's only a small chance you'll get the kind of breakthrough that would make money.
Surprising Claim
Some people are willing to invest in this stuff.
Goal
Given that investing in life saving/extending technology requires lots of up front money with a low probability of making money back, why do people invest in it?