I wouldn't give Locke that much credit. I think he has selfish intentions and he's so stuck on feeling special and a part of something important on the island. I think that Ben can manipulate Locke, more than the other way around. Ben actually reminds me of Locke's father in a way, he won't be able to overcome him and he will continue to obsess over his need for control.

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Because all we really need to survive is one person who truly loves us. And you have her.