Whales are not always a bad thing. They can save a coin, but on the flip side they can also totally crash a coin. If bitcoin for example would fall too hard, the whales will most probably step in and take over the market to stop the crash, since they otherwise lose all their money.

On the other side, if they want to buy more coins, they totally crash the market to buy their coins really cheap since they know that the market will go up again after they leave the market.

So on one side whales keep us down, but on the other side we might need them sometimes.