I think that there is a number missing here:

in the sense that

of the 24 members alreaday support the idea.

of 24 is
which means that 8 members already support the idea.
So if they need the support of 13 members, this means that they need 13-8=5, that is 5 more members.
Answer:
The answer is meritocracy.
Explanation:
This concept is used to describe a society in which individuals are rewarded according to their talent and effort.
Early definitions considered merits such as intelligence or moral qualities; modern definitions include college degrees as an example of meritocracy, as the level of achievement could be measured by grades. However, some deem this instance to be imperfect because many people cannot attend college due to expenses, among other factors.
The government controls almost every aspect of life.
Many people will not be able to obtain a car, and iron is used to make cars in some shape or form, so then cars will not be made as much.