...surgery ready available to those who can pay
Well, in some cultures, there is a very strong preference for medical treatment as a commercial product. And it is most definitely the preference of companies in the medical industry!
...people in third world countries...don't understand the consequences the selling of their organs might have in their life
With all respect, people who do this, no matter where they live - and this is not something that happens only in what you might think of as the "third world," totally understand the consequences.
They understand that if they sell the organ, they will receive money, and if they do not sell it, they will not receive money.
Yes, in many cases, it basically boils down to one family member offering up their life to buy the way out of pain, even a little more time on earth, for another family member. They understand that, too. They may even have a more comprehensive understanding of it than you do, as they will be more likely to know other people who made that choice, and have since gone to Heaven.
And because the societal conditions that brought them to that decision will still exist, it is unlikely that it will be more than a little more time, or more than a short respite from pain, because the worker's income will still be insufficient to purchase medical treatment for the ailing family member, even if the worker survives the surgery long enough to keep working for a while.
In its actual effect, it is not all that different from people who, motivated by the same desire to obtain immediate relief, or a little extra time for a family member, basically trade their homes in order to make that same one-time purchase of medical products or services whose price point is not a good fit with the value the market places on their labor.
The transition out of housing will almost certainly be accompanied by the resulting change in life expectancy, not to mention the cessation of income, which was not sufficient to buy those products and services in the first place, anyway!
...i consider the selling of organs as immoral...
Many people do.
However, it is clear that most people do not consider the societal choices that result in the selling of organs to be quite so immoral, or different choices would be made.
But just like the decisions to purchase things that one's wage is not enough to pay for, when the thing one wishes to purchase involves medical products or housing, these are not choices made with logic or consistency or a calculator, but with the heart.
Similarly, sometimes there can be some disconnect, a little dissonance, between how people feel about the individual act of a worker whose labor is valued below the price point of the thing he wishes to buy, and the way they feel about assigning that value to his labor and/or to the product he wants.
......profiteering from the misfortune of others and taking advantage of poverty and ignorance...
Are standard business practices, that have long enjoyed a high level of acceptance by those population sectors who receive a benefit from them, and sometimes an even higher level of acceptance by those who are not currently receiving a benefit, but aspire to.