Do you think that something as phenomenal as bitcoin in the financial sphere is waiting for us in the future?
Bitcoin is in the financial sphere... and bitcoin is the thing that you have been waiting for. If you are trying to refer to some other nonsense such as defi phoney baloney
then you should be considering that those systems are better built upon bitcoin, to the extent that they are going to be secure.
But why wasn't anything built on top of Bitcoin? I believe it was because the Core developers wanted the blockchain to be as "basic" as possible, and because accommodating them required hard forks. Wasn't that the reason why Vitalik founded Ethereum? Because he can't build the things he wanted on top of Bitcoin?