Locke's problem is faith, he believes it will guide him in the right direction all the time. Sayid knows that now and will probably be more careful as to what Locke is up to. If you remember, Jack in the cage 2 weeks ago, he pressed teh food button twice, it sounded an alarm, he got the hint. Sawyer was to thick to understand, but Locke would probably push away knowing the island would take care of him, then bounce his bald dome off the bars. Faith can be very dangerous when you lay all of yours in the wrong hands.