It reminds me of how English developed in Great Britain. It wasn't the wealthy and nobles who established English as the main language, because they were few and far between and therefore, had weak influence. Instead it began as the speech of the peasants and gradually built up momentum because of the large numbers. Then it became the language of the people.
From what I've seen, certain change cannot be commanded; it can only grow from a grassroots movement--especially in the Church. We limit our resources, and therefore mission, if the only ideas come from the uppers. We also limit our mission if we underestimate the power of personal "referrals" and word-of-mouth "advertising". So much depends on the bottom-up stream of change.