Lots of GiveWell posts:

• http://blog.givewell.org/2015/02/27/the-path-to-biomedical-progress/
• http://blog.givewell.org/2014/01/07/exploring-life-sciences-funding/
• http://blog.givewell.org/2014/01/15/returns-to-life-sciences-funding/

See also

• The moral imperative for bioethics by Steven Pinker (there also seems to be various responses to this article)
• Steven Pinker interview: case against bioethocrats & CRISPR germline ban - The Niche