Ponies surpass Man in innumerable aspects, but chiefly, one: to rule ponies, one does not require war. Ponies will openly throw themselves down before those with power.
Warcraft is but one form.
Despite the difference, ponies and Man share a concept: they are strong together, and weak alone.
For a proper unicorn to rule, you must bear no equal. You will toil alone.
And with the warcraft of Man, one alone may rule many.