You can't just follow whomever that gave you signal or information about your investment, have you think how much time they invested in making research about what you wanna take from them?
Sometimes it's good to follow some famous people but not everything they do you should follow as their target is never the same as yours so while following them apply some techniques that will help to guide you through despite the challenges you would still be at your fit.
The logic is that if there is one person who is almost always right (doesn't even have to be always right, just profitable enough) that could end up guessing directions of coins all the time, then that person could make even more money. How? Well, if that person is Warren Buffet then he doesn't need to tell you that all, but if he doesn't have anything over a million dollars, and he is not known by anyone then it is possible for that person to get super famous, use that fame to sell ads, and then they could get to a level where they are known by anyone in crypto world and rich.
How many people in the world would say no to that? I mean I would say no to that because I am scared of fame, the idea of being known by everyone doesn't excite me but scares me, but there are billions of people in the world who would love to become famous as well.
So, what do you need to do in crypto world for that? You need to be right about your suggestions, if you are right then you will get famous and rich, if you are wrong then everyone will hate you and you will not get ads. So, people follow them because they know that he needs to be right for himself as well, not just to "help people make money" they need to do it because of themselves.