Many executives consider managing peoples is harder than managing machines, and that having many people working together have a better value than a single person.
As such, many want a raise, but no-one want to manage peoples and have responsibilities that involve human factor (state otherwise, it is easier to be sure about the result of your own work than the work of your whole team). That’s the reason why it is easier to ask for a raise as a manager than a single coder.
So to give an example, is as if English speaking peoples would use a service named “Davedick”.