Here is a file I've been working on with Splinterz to show the reasoning behind manipulating arbitrary role ratings to more match each other before labor optimization. some are similar, whiles others are way off.

viewing the pdf file shows all you need to know

Included is the excel as well as pdf result of the excel

Here is a link to the original source google doc

https://docs.google.com/spreadsheets/d/1k10kLZLk1zW8aPl1tW4p74cg8dDGE--upuN9wTehX5E/edit?usp=sharing