I think the difference in leverage between a software eng and a line cook does have a law-of-nature quality to it. Line cook serves dozens a day, software serves minimum 0 and maximum the whole planet a day, and that service could stick around for years without degradation
It really boils down to how much money a business can make from your outputs. A line cook makes the business less money than someone building an AWS service. This is not a law of nature, just the status quo.