It's not a pyramid. Primerica is a real company. Victims think they will be employees but in reality they are independent contractors. Then they give incentives to sign up other independent contractors. The money you pay to sign up is for their materials, just like paying a franchise fee. People get caught up in what those other independent contractors are feeding them and don't see the big picture.
Primerica sells products like any other brokerage firm or insurance company. Only way to outsell your competition is to have the best product or a good sales strategy. Their strategy is flood the streets with dealers or in their case independent contractors. No overhead and you make a little money on the side by them having to cop your sales materials. Then to get more people, you pay bonuses to have then successfully recruit other people.
Primerica has like 90,000 + sales reps. About maybe half that sells products and is caked up. Them there is 10,000 of constant attrition of dumbasses who come in with their eyes wide shut. And Primerica gladly accepts the extra revenue. I admire it actually. Capitalism at its finest.