Sometimes most of the people who are holding the coins will manipulate the price but it won't stay much longer there. Soon the price will dump faster and makes the investors lose their money. Don't fall for pump and dump, it will make you lose money when there are manipulations.
So in other words do you mean to say that market forces surpass the effect that is caused by the people who manipulate the prices? Actually the ratio of the whales manipulating the price of crypto in market is far below the number of users and the consumer behavior in market and investors behavior in the crypto market can overcome the effect caused by the manipulation of prices if there had been more knowledge about the crypto among the users. Following a good strategy plan helps overcome abrupt fluctuation in the market.