1. Run challenge trials, but don't pay participants in money. Talk up the danger and risk, and publicize the heroism of the people who volunteer. Make a spectacle of it. If you ask for fifty heroes, is there any doubt that you'd get them?
2. Pay participants, but impose a minimum price they need to be paid in order to assuage people's squeamishness. That hypothetical guy in sub-Saharan Africa might be exploited at $10, but if he's getting paid $1,000,000 then he has practically won the lottery.
Either of these would be a big improvement over the status quo, where challenge trials aren't run at all and countless people die because of it.
1. Run challenge trials, but don't pay participants in money. Talk up the danger and risk, and publicize the heroism of the people who volunteer. Make a spectacle of it. If you ask for fifty heroes, is there any doubt that you'd get them?
2. Pay participants, but impose a minimum price they need to be paid in order to assuage people's squeamishness. That hypothetical guy in sub-Saharan Africa might be exploited at $10, but if he's getting paid $1,000,000 then he has practically won the lottery.
Either of these would be a big improvement over the status quo, where challenge trials aren't run at all and countless people die because of it.