Does a more expensive pastry chef produce more expensive pastry? Or can a more experienced chef produce higher volume also? If the cost of the pastry increases with the cost of the chef, then it's entirely reasonable that there is a lower demand for more expensive pastry and therefore a lower demand for more expensive pastry chefs.
With software development it's a little different - it's entirely possible for a more expensive software developer to produce lower-cost software if the cost savings come from better planning, more fluency with the toolset, and fewer (high-impact) bugs.
With software development it's a little different - it's entirely possible for a more expensive software developer to produce lower-cost software if the cost savings come from better planning, more fluency with the toolset, and fewer (high-impact) bugs.