Your statement is true because of the "sometimes" but how does it apply to this case? I thought it was a good expression of what the author meant to convey. (W

Your statement is true because of the "sometimes" but how does it apply to this case? I thought it was a good expression of what the author meant to convey. (Which is that you can get the most benefit from mainly adhering to a principle, while full adherence has intense costs)