You're considering putting money into a pyramid scheme because you aren't rich. Um...
Look, it's your call, but IMO these people prey on the ignorance of their marks. They put the scam out there, knowing that 99% of folks will recognize it for what it is, but also knowing that the naive 1% can make them a fortune. By placing yourself in that 1%, you are helping to perpetuate the cycle. The "opportunity" you describe is not new. It's a well-known scam. The only people who benefit from pyramid schemes are those who initiate them.