Maybe the OP thinks that 98% of the people in crypto wants to be a part of it because of all the benefit Bitcoin brings. There's no way that 98% of the world population is even aware of Bitcoin. I'm sure that substantial percentage of the world population have bigger concerns in mind than buying some BTC.
It's guaranteed that 98% doesn't even know about it, the number is much higher than it used to be, but still nowhere near 98% at all. I am sure that the people who are aware of bitcoins existence reached like 70-80% for sure, maybe even a bit more, but that's it, 98% doesn't even probably know Antarctica exists, let alone bitcoin, there must be more than 2% that haven't heard about it yet.
Aside from that fact the investors of it, the real question here must be like less than 50% as well, from the people who heard about it, we have less than half of them investing into it as well. Which isn't bad, it means that we have a big room to grow and I am happy about that.