I think that the point of the parent poster is that often even when the work culture is obsessed with measuring, the people doing the A/B testing and careful study of the benefit to the company are quite separate from the people implementing the change; the information will be used in some decisions and flow to various layers of management, but the developer who built that feature won't necessarily even get a message when it eventually got chosen for widespread deployment or got abandoned after 4 months of being shown to a control group, much less getting the data on what the estimates of financial impact showed.