Seth Godin is very good at reminding people to keep going even though they are not yet seeing results. (I highly recommend The Dip: A Little Book That Teaches You When to Quit (and When to Stick).
Recently he reminded us that we can't reason our way into cultural change. No matter how good the reasoning, we have to expect slow change based on our commitment. If we trust our reasons we have to trust that time is on our side. We have to be role models and cheerleaders and analysts, and we have to figure out how to sustain ourselves.
Seth's Blog: The Flip is Elusive, 2016-Jul-14 by Seth Godin
If you want to change people's minds, you need more than evidence. You need persistence. And empathy. And mostly, you need the resources to keep showing up, peeling off one person after another, surrounding a cultural problem with a cultural solution.