My experience with OneCoin is that people who were involved in it were shady and trying get less shady people on the board. That was back in 2016 / 2017. At least in Eastern Europe, it was going like this (translation): The "master scammer" created a platform for "wannabe scammers" to scam others. But the master is the master. Typical ponzi scheme: everybody knew but they were hoping the get bigger sucker.
Or did every investor want a get rich quick sheme?