[Twisol]

I'm not really sure why you're being downvoted. You're right that 3B1B really does manage to solve a problem in a high-quality way, and it's amazing how much of an effect that really has on people, especially considering the relatively niche topics that 3B1B goes into. (You'd think that his "Essence of" series would be more popular, but the one-off problem analyses have ridiculously more views in general.)

In some ways, it is a "rich-get-richer" effect. But creators like 3B1B expend a lot of time and resources to do what they do, and the word of mouth he gets is an acknowledgement that the work he does is worth the money and views we provide.