Scientists also have highly unrepresentative personalities, high in openness to experience, and tend not to care about conservative values like respect for authority, group loyalty, and various taboos. Delegation of decision-making power to representative samples of elite scientists will thus favor those values more than the policies that would be adopted by a set of comparably informed people with values representative of the population.
Delegating this power to politicians has a poor track record.
Are you speaking from within a rationalist perspective, or are you defaulting to speaking from within a populist framework?
From Michael Eisen's blog:
Yuval Levin, former Executive Director of the President's Council on Bioethics, has an op-ed in Tuesday's Washington Post arguing that Obama's new stem cell policy is dangerous. Levin does not argue that stem cell research is bad. Rather he is upset that Obama did not dictate which uses of stem cells are appropriate, but rather asked the National Institutes of Health to draft a policy on which uses of stem cells are appropriate:
Lost in this superficially unobjectionable - if banal - assertion of the complexity of ethical issues involving science is Levin's (and many other bioethicists) credo: that the moral complexity of scientific issues means that scientists should not make decisions about them.