T. S. Eliot once described the current human endeavor as that of finding a system of order so perfect that we will not have to be good. The way of Jesus tells us, by contrast, that any number of systems–not all, to be sure–will work well if we are genuinely good. And we are then free to seek the better and the best.
The impotence of “systems” is a main reason why Jesus did not send his students out to start governments or even churches as we know them today, which always strongly convey some element of a human system. They were, instead, to establish beachheads of his person, word, and power in the midst of a failing and futile humanity. They were to bring the presence of the kingdom and its King into every corner of human life simply by fully living in the kingdom with him.