Don't forget all the union contracts that are keyed off of the minimum wage.
"Unsurprisingly, many CBAs available in the OLMS database link union salaries and wage rates to the federal minimum wage. There are a number of methods that unions use to accomplish this end. The two most popular appear to be setting baseline union wages as a percentage above the minimum wage, and mandating a flat wage at a set level above the minimum wage."
https://www.investors.com/politics/commentary/unions-seek-minimum-wage-hike-because-it-would-also-boost-union-pay/