Earlier quoted context omitted.
This is a great point. I've been trying to think of as many things programmers can do that increase revenue as possible. A/B Testing and sales funnel optimization is definitely a winner. - Optimizing how a company utilises it's resources - Optimizing the speed and performance of a critical business function. - Increasing marketing reach - Generating more sales leads What else guys?
I actually think of your first two points (optimizing...) as cost cutting services, while the other two are good examples.
The company could of course treat it as "doing more with less" and therefore use it for cost cutting instead. Depends on the situation.