My belief is that both sides are amoral and simply attempting to serve their own interests. But it may well be that one side’s objectives are better than the other in some meaningful way, and I think it’s more likely that the Others are on that side than Widmore and his people.
That being said, there is one thing I know for sure about LOST. Benjamin Linus is a bad guy. He may be working for the nominally good side, but make no mistake--he is an evil person. He is one of the most charming evil people out there, as seen by the Lostaways continuing to trust him when they have every reason in the world not to, and by his popularity among fans of the show. He is a great character, and Michael Emerson is a fantastic actor.
But Ben Linus is evil. There is no goal, no matter how noble, that can justify all of the evil actions that he has taken. Again, he may be less evil than Widmore, but don’t let that distract you from the truth that he is a bad dude.
Based on the fact that the island’s movement can be estimated with some accuracy by the equipment in the Lamppost, my explanation is that the movement of the island in time is predictable and stable under normal circumstances. Therefore, the people on the island do not notice and it does not effect them.
Consider the matter of the Earth. Our planet is hurtling through space at unbelievable speed, and at the same time it is revolving rapidly around the sun, and at the same time it is spinning on its axis. But we don’t notice that. We notice some of the effects, of course--we see the sun rise and set, for instance. But it does not feel like we are moving through space at breakneck speed. If somehow the fabric of the universe came apart, and we suddenly stopped or something, then you’d better believe we would notice it. But the constant movement does not really affect our lives barring some catastrophe. I believe the same is true with respect to temporal movement of the island.
Well, this week is one of those titles that gives away what the episode is about. I’m not going to share it here, but allow me to say: it sounds very cool.