It's a good idea but if you'll notice some people such as Gene and Zemus for example have a certain charisma that makes people want to listen to them. Many famous actors, politicians, etc have charisma. The majority of the people don't so you can explain how to do something doesn't mean the person can do it. Some people just come across better than others, these people are also the ones who tend to get hired.

For those people who don't some can force themselves into it or find some other angle that makes people join. People have to find that angle and use the angle that works for them, you can't expect 100% recruitment, it won't work, you'll lose more members than you gain. I'm babbling so I stop now