I bet the cost of a nephrectomy in Botswana is even cheaper, but I suggest you check statistics on operative and post operative mortality rates, and post operative infection rates before you hustle off to a foreign country to get your Kidney removed.In India, the cost for this operation ranges from $4000-$7000.
https://www.medicaltourismco.com/nephrectomy-surgery-abroad/
Your statement that lowering price to create more sales means mor profit is often erroneous. Once your per unit cost (in this case the average cost to insure someone) falls below the per unit premium, you begin losing additional money for each person you add on.
In the case of health care, the more broad the coverage, the more sickly (less insurable) the additional people are likely to be and the more I'll need to hike the price for the entire pool to allow profit.
My anecdotal experience, as someone that has been badly injured in a foreign country that had universal health care, is that you don't want anything to do with those hospitals unless absolutely necessary.
I have read your second and third paragraphs a few times, but I'll be damned if I can make any sense of them.