to take the company example, the board needs to have strong leadership, but then towards the top the market in which the companies resides benefits from different companies trying different approaches, and towards the bottom, as a corporation, the board will have the ability to make the best choices if they have a larger diversity of underlining teams offering them different solutions to work with. each team needs to be unified and cohesive, but each team member is more likely to come up with the solution that would bring his team on top if he interacts with a larger diversity of people who inspire him different approaches that might be applicable to his problem.
this exchange between divergence and unification goes on layer after layer throughout most social phenomena.
science is also a testament for this very phenomena: people who are merely fans of science will often consider it a faithless institution, and truly the larger ecosystem is one of divergence and experimentation, but this in turn depends that each scientist will have exceptional faith in his specific line of work, sometimes working lifetimes of far fetched theories on a desperate hope to find something when a thousand other scientists are working to disprove the very same theory.
it's being suggested in the MBTI that Ne and Ni tend to have the same interplay. the same old interaction between pattern divergence and pattern unification. as individuals we might be playing one role or the other, but the social ecosystem demands both.