Income inequality? Does risk of dying on the job count as something worth higher pay? If so, then I think you should reconsider the mantra of "wage gap".

Have a look at the death gap!

https://www.investors.com/politics/commentary/how-come-nobod...

Note: this is just the first hit on google, I'm a bit reluctant to write down an entire arguement here because you have very like already made up your mind...