The patient sees a $10k bill, pays a $300 deductible, and only $2k ever actually materializes in the exchange between doctor/insurance. And afaict, this is the expected operation.
Of course, when you're uninsured, the numbers stop making any sense, because they fail to go through the convoluted process that reduces it. You just get the $10k bill and thats the end of story. But for the insured, a $10k bill is not $10k exchanged.
I think the same culture exists with doctors/insurance. It's not that they're skilled enough or have enough power to negotiate down 50%... doctors are putting numbers up expecting to be reduced to 50%.
And then us poor saps get slapped with these absurd numbers and thank the gods we had insurance... but no one involved ever really expected to pay that number. And ofc, without insurance, you're like an american trying to shop in india -- no idea how to play the game, trying to negotiate in the american fashion with 120%/80% when the other guy started with 300%, and don't have the information to realize that initial $20 offer negotiated down to $18 isn't even close to what an indian would have managed (probably $5).
And its not like he's going to correct you when you fail to negotiate properly.