This is actually happening right now, for many years in fact, but not in the name of religion or some spiritual explanation. There are so many Ponzis and other investment schemes that are being operated by different groups. But these are basically investment groups not religion or something like that.
Ponzi is a scam scheme that is used by scammers and they don't hesitate to use any available tool to steal money from naive people. They can use religion to run their Ponzi and they do not self-restrict their scams in only investment.
When they use religion as tool for their Ponzi scam, they will not publicly say it is a kind of investment, a Ponzi, but they will give some attractive promise and some sweet words to do their scam plan. There are always naive and greed people who will be scammed not only by Ponzi but by other scam types.
The basic point is the same though. The members would contribute to those who are running the scheme. It is encouraging of course because anybody can check the rising price of Bitcoin. In the end, only the leaders will make wealth.
In Ponzi scheme, the creator and early participants, at highest tiers of the pyramid, will gain profit. The lower under the pyramid, people will lose more money than gains.
This is another way of centralizing Bitcoin which is pointless.
No Bitcoiner want to centralize a decentralized Bitcoin network.