Ni converge on ideas. They focus on what they know, rank options, and then chooses the best one. My mother and sister and INxJ's (mom is F, sister is T). They are always comparing and contrasting things. I think Rockefeller (others will disagree) was ENTJ. In my opinion if you look at any portion of Rockefeller's organization in isolation nothing was out of the ordinary, but the compilation of all the pieces was quite extraordinary. He looked at all the option for each job-function, ranked them, and choose the best one. He did this over and over and over again until Standard Oil and the model of the modern american corporation was born.
Like Jixmixfix said, Ni is crafty. They use their tools in new ways. Ne is innovative. We create tools.
From my experience with INTJ and myself, INTP.
Ni's think, choose, act. They are very confident, productive, and right enough.
Ne's observe, think, observe, think, maybe write something down, observe some more, test, think, write, observe, and then maybe act. We are very right.