People never do anything because you want them to. They change because they want to.
How can we create the conditions for that change to happen?
It's not by lecturing developers about ARIA labels until you're blue in the face. Or by sending compliance emails to designers. And quoting disability statistics to product owners doesn't work either. None of that shit matters if they don't see what's in it for them.
What if instead you show developers how semantic HTML makes their code cleaner and easier to debug? Suddenly accessibility isn't extra work. It's the same work, just better.
What if you show designers how high contrast improves readability for everyone, not just visually impaired users? Now they're solving a design problem, not checking a compliance box.
What if you show product managers how accessible forms reduce abandoned carts and support tickets? Now accessibility is a revenue driver, not a cost centre.
Microsoft didn't build inclusive design features out of charity. They did it because users with disabilities represent $13 trillion in annual disposable income. Show executives how accessibility opens new markets.
I've stopped preaching about moral obligations. I've also stopped trying to guilt people into caring.
My job is to show them why they should want to.