Speaking purely for myself:
It would help a lot to figure out a public toolkit for tech companies to perform relevant testing; just as the results should be made available publicly, the methodologies should, too. It’s not always obvious how this might take place, and while in a perfect world they would hire relevant people, it’s not always possible. This is particularly true when a startup is just ramping up, which is both the most crucial part of its cultural development and when it has the least resources.
I’d love to see this become a norm. It’s my observation that teams usually want to do the right thing, but are less good at measuring their impact in these ways. Not through a lack of willingness, but through a lack of tooling and expertise.