Read Kevin on Daniel Brook's The Trap. Kevin points out another thing that bugged me abut the book, namely, Brook's apparent belief that anyone in the corporate world trudged there, death march style, after being priced out of working for a rewarding non-profit.
I know lots of people in the for-profit world. They like their jobs pretty well -- just as well as Hill staffers and non-profiteers. And a lot of them like having money! Brook paints for-profit work as a loathed fallback to every young person's natural ambition to work for Amnesty International, but not only does that fail to track with my experience, it's sort of insulting to folks who have chosen a different career path than I have, and thus probably not the way to build political support for a program that will reduce their salaries.