What we are paying to union workers is only a part of the cost that providers charge.   There is not a direct correlation of wages to final service cost.    

If you doubt me, look at the charge for single radiation treatment for brain cancer, then look how much of that is supported by only the labor.    Feel free to include the labor from the reception desk, janitors, the radiologist, the person who helps you find the room to change clothes... all of it.   

http://health.costhelper.com/brain-tumor.html

*My wife had her last brain tumor treatment less that 24 hours before she died.   I was already in grief by that time and had no strength to question the treatment schedule.   Over treatment is a serious part of cost in some diseases.   

Just saying labor cost is NOT the only factor in user's bill.