To me "first, do no harm" means responsibility #1, beyond doing good things, is to refrain from doing bad things. If someone is a rapist and a giver to charity, our focus ought to be on the former not the latter.
As for Tom Woods's relationship to the Catholic church, perhaps he doesn't have a blind spot. I like to think I don't have one with respect to Jefferson. On the one hand I honor him with my screen name and tag line, but at the same time I find abhorrent his practice of holding slaves. My praising a certain thing about Jefferson does not, in my view, imply that I have weighed in--one way or the other--with an overall, sum-total view of him.
Perhaps Tom Woods's praise for the Catholic church likewise fails to imply any overarching assessment.
I Stand With Glenn Greenwald: http://www.youtube.com/watch?v=Uulv4ve6RJ8