Despite flirting with other views the universe seems to have settled on the idea that the Jedi are at least right about the dark side. Is it not extremely important for any group like them to maintain as much objectivity as possible? I mean, a celibate diplomat-warrior race that rejects things we consider basic parts of humanity is shitty, but what about an entangled race that is enmeshed with the galaxy and it's various problems? How much would this suck? What happens when all these other conflicting loyalties start intruding on the actual business of protecting the Republic?
I mean, it's not like the New Jedi Order did that great a job with the whole attachment thing. They always pulled themselves back from the brink but people died as they prevaricated, people who could have lived. The entire Legacy of the Force series essentially runs on this. The Sith would have had a much worse time of it if the Jedi hadn't been so blinded by their attachments. Spoiler
People keep saying that the Jedi were stupid for their actions with Anakin, and I agree to some degree: They should never have trained him.At all. Once they broke that one rule they were sucked down a path where they could only tear someone who was not suited to their rules apart or weaken themselves. But even then, they had little choice. It was probably better- or more in keeping with their ideology- than killing him, which was the safest path with the Sith still alive.