Well the prequels were supposed to be more of a condemnation of the original Jedi order. The Jedi were supposed to be these hypocritical religious zealots and Anakin was supposed to be drawn to the darkside because of that hypocrisy. It's why he was "too old" to train because they wanted tiny minds to indoctrinate.
All of this culminates into that penultimate line by Obi-Wan. It's illustrating that hypocrisy.
However Lucas has the directing chops and subtlety of cocaine bear and this all went flat. You see this more watching deleted scenes and reading some of the side content.