It's like, what's someone price to commit a genocide? There are people out there, they will stubbornly refuse to engage in such a practice, no matter what amount of economical wealth is promised. It doesn't need to be rational. Rationality is not self justifying anyway. The will to help to build better societies is only marginally rational, all it takes is people with some empathy. Rationality is just better to tackle the logistic, it doesn't provide the constraints on what is deemed valuable.