Ponzi scheme is centralized, Bitcoin is decentralized.
Bitcoin will not deceive anyone and is transparent. Bitcoin has value because of everyone's consensus, and Bitcoin will not collapse because of the operation of a giant whale. No one can control Bitcoin.
Actually you're not completely correct.
It's true Bitcoin is decentralized and anyone can own Bitcoin no matter what his country, ages, religions, etc. But there's a whale who own large amount Bitcoin in a single address, we also don't know how many address he have. If the large amount Bitcoin were moved to another address, it will be posted on whale alert and sometimes it's affect the market.
They (whale) may not controlling Bitcoin, but they've a big impact on the market.