@Tryphon I'm ignorant of the hand-wringing you speak of, but this sounds like you want a technical solution to a social problem...
People (and trust) are highly subjective and they change over time.
The people you trust with your life today, may be your bitter divorces of tomorrow. The network security guru may also be a rapist "in his spare time."
The idea that some sort of computer system could tell us who to trust strikes me as not only impossible, but actively dangerous to attempt.