In order to shift the overton window you have to first get people to at least discuss the things you want them to focus on. You don't need to get everybody on your side immediately, but you can't ever hope to sway people if they're not even aware of the problems. The reason this feels like it's taking so long is because it's been a process to simply make people aware of what's going on in the first place. It's tedious and unsexy but it's a necessary part of the process. Water cooler walk is a great way of putting it.