There are no need to limit yourself.
We are all here to make money (sad but true) and by making more sales we make more money. So that is why we refer TC members. But at the same time we have to sponsor more affiliates because we benefit from the sales they make and they refer TC members and sponsor more affiliates that make more sales, and so on and so on. At the end of the day we all prosper here and make more money.
Hope this helps.