Such thoughts or misconceptions is mostly seen in people that don’t have an in-depth knowledge about bitcoin and how it works.
Bitcoin is not getting rich quick kind of investment because in its operations you will find out that “Patience” is the key factor that cannot be overemphasize,so if truly you want to be one of the beneficiaries in bitcon investment you need to work on your risk tolerance.

It is not ponzi scheme that you will be expecting huge returns in a short period of time,so if you come in to the space with that kind of mindset,you need to do away with it because definitely the reverse will be case,and at that point you’ll tend to paint the investments black by tagging it as a scam.
Any crypto related investment is always a long-term project,so the time you give for the accumulation of wealth is what that will pull out that huge returns you were expecting in a short period.

Don’t buy any informations or ideas regarding bitcoin investment when you have not tested it before.I’m talking with experience because that was my initial misconceptions i had,not until i embrace it and the mode of operation was totally different from what i perceived.
 
Tested and Trusted.