Idiom interpretation

I looked up the meaning of the following idiom: "In the land of the blind, the one-eyed man is king." because I didn't quite understand it in the context of a movie I am watching (for those that are interested, the movie is minority report).

The wiktionary page gives 3 different meanings, the first two are self-explanatory and are the meanings that I was familiar with. I couldn't make much sense of the 3rd one though.

1.Among others with a disadvantage or disability, the one with the mildest disadvantage or disability is regarded as the greatest.

2. Even someone without much talent or ability is considered special by those with no talent or ability at all.

3. Someone that can see his actions transpire in determination makes the most out of every other thing disconnected

So someone that performs his actions with determination will get the best results in incidental or unexpected situations?

Why is it "in determination" instead of "with determination" and what does "disconnected" mean in this sentence? Is it even used properly here?

And how does this relate to the idiom?

Thank you for any help, this is really confusing me!