IMHO, humanity's goal for the next hundred years is to enhance our energy and medical technologies as quickly as possible. (space takes a distant third).

We are essentially in a race against time: if we are too slow, we will deplete our resources and wipe ourselves out.

There are lots and lots of things that are worth a single human's life (or tens, hundreds of lives). Research is one of them. For instance, if we could magically trade a random 100 lives for knowing if there is extraterrestrial life, I believe that it's a worthy trade. That's just one example.