Not for lack of trying. They did push for cryptocurrency to be used as actual money (with some success - see El Salvador) and for NFTs to be used for managing ownership (of actual things you can use - not just JPEGs)

It's not that generative AI advocates are more pushy than crypto advocates - it's just that they are more successful. Because like it or not - generative AI does work and does provide value. The problem with it is the ethics of training it and the negative impacts it has on society - but let's not pretend it's a failed concept like cryptocurrency.