> "Who values their life the least?" knowing that their sacrifice will make for a better future. I think the pioneers will go there for a sense of adventure,

> "Who values their life the least?" knowing that their sacrifice will make for a better future. I think the pioneers will go there for a sense of adventure, not for a monetary reward or out of some sense of "sacrifice for the future". There will be enough people who want to go that you can select a great crew from that group, and there is no reason to send people who don't want to or have to be convinced with money.