Taking a bad option away might be worse for a person, but will be much better for the people. These regulations (no selling organs or sex) exists, becuse in a free market there would be a race-to-bottom which would not increase human values.
Suppose we allow selling sex for rent. The number of rentable apartmants stays the same; however, there will more demand for them, because some people can now pay for them by non-monetary means. Because of this, the rent prices will increase, and that would just accelerate the rent-problem.
While exchanging kidneys for medical treatment is OK for me, it should not be mixed with the standard money market. The forces of money markets usually optimize for dollar value, which could be decoupled from human wellbeing. The result would be a worse state for everyone.
Also: If the rent is so high, why can’t a developer build a new complex? They could rent it out and would very fastly pay for itself. It would increase the number of flats and lower rents. These bad options try to solve a supply issue from demand side.
How to be the smartest person in the world:
Let’s say A is smarter than B if A knows about topic X, but B doesn’t.
Step 1: Let’s say you don’t know about quantum biology. But Charlie knows, because they currently do a phd in it.
Step 2: Go to Charlie. Say: “I heard about quantum biology, and it sounds interesting. Could you give quick intro on it?”
Step 3: Charlie says (eager to talk about the cool idea they found): “Sure. Quantum biology is [two hour forty-seven minute long monologe].”
Step 4: Important! Listen to it.
Step 5: BOOM! Now you also know about quantum biology.
Repeat it for every topic. If you partition humanity along every topics, you will always be in the in-the-know part. By Zorn’s lemma[1] you will be one of the smartest person in the world.
To be fair, in real life there are time and energy bounds, not everyone has time to talk about their topic, and active listening can be a hard mental work. But it worked for me a surprising amount of times. Well, surprising at first, then I adjusted my expectations.
actually you might not need Zorn’s lemma for this, but it sounds so cool