I wonder if it is a US thing of employees having too little power. A couple years ago I heard an interview on Fresh Air [1] where a woman talked about her experience cleaning houses. She said she at first made $8.55/hour while the agency charged clients $20/hour (later it was $9.25 and $25, respectively). That means the agency got 57% (63%). I told my wife if we ever hire someone to clean our house I'm asking how much the person doing the work gets paid, and if it's not above something like 70% of the total, we're not doing it.

[1] https://www.npr.org/transcripts/689611873