What if all the rich people come together and buy most of the BITCOINS can this lead to the control of power again in the hands of few.
Good thing about bitcoin is that it is not controlled by anyone and it has a limited supply and no one can create a bitcoin from anything. If the rich people decides to invest in it and try to control its price everyone who has a bitcoin will benefit from it. So if they decide to buy majority of the coins it's price will go high and people who have coins can sell it on a higher price.
No one has direct control of bitcoin but there are many entities that have a lot of power in bitcoin, the core developers, the miners and the whales are all very powerful and have indirect control of bitcoin, and governments are going to begin to influence bitcoin as well with their laws and regulations and finally we the users are powerful as well since we as an aggregate can decide if a fork is successful or not by using it or not.