No man is an island.
I've always took it to mean we always have to deal with all of mankind.

In my world I've always seen it as:
Every man is an island and it's up to him as to how he deals with the greater land mass of humanity.
Does he live on his own island and do the best he can by himself ?
Does his make a chain of islands who are of the same mind ; Or does he join the masses and follow as best he can.

I'm of the school that less is more.

What say you.