There are different types of manipulations. There are ones that some exchanges or the trading platform officials will be the ones that will be manipulating. But there are also ones that not the exchange that will be manipulating. The exchange officials does not need to be the one manipulating as it can be wash trading and not insider trading.
These different types of manipulations are driven solely to make profit. And not just any profit but massive profit. And these profits are made in my estimation, the wrong way. The wrong way because honest traders are affected. While the manipulators are making profits the honest guys will be counting their losses.
Now this thing has become common and to keep it alive, humanity say that it is wrong otherwise someone wants to earn money from which they can earn a lot of profit. When to earn more money one has to deceive someone and hide a little truth from him, people work harder. If there is nothing humanity in it then it is a wrong way to teach us what is good and what is bad. This is absolutely right and those who are earning so much profit are thinking how to earn more false profit.