I don't doubt that Amazon has abused workers in various ways, I'm just saying the headlines exist because of their massive scale and visibility. EPI estimates (which are probably a bit aggressive, but backed by sources) say of 2.4M workers in the 10 most populous states, $8B/yr are lost to wage theft. Amazon, with about 1M employees, is not stealing billions per year. In fact, they consistently pay well above minimum wage. My point here isn't that Amazon is great and we should stop complaining, but rather that worker abuse is rampant across all industries and Amazon is likely exceeding what is a very low bar.
You are misusing that statistic the average of all employers would include all workers not only those workers that experienced wage theft.
If the US labor US labor force is ~161.2 million workers and had 8B/year in wage theft then the average per 1 million workers is ~50 million. Seeing multiple payouts well over 50 million suggests Amazon could be worse than average here.
https://www.epi.org/publication/employers-steal-billions-fro...