I dont see any major changes in banking sector nowadays. From banks, I only get notifications that my account monthly fee will be higher, and changes of plastic card limits. I understand that every bank in every country is different, but except an option to buy car insurance, I cant remember nothing innovative during last 5 years. As to Bitcoin, what new can it innovate? We are only waiting for mass adoption and that is it.
Why do people rob banks? As bank robber Willie Sutton said, "Because the money is there."
Bitcoin itself is a technological innovation. Bitcoin is the first application of the underlying technology of the blockchain. It is not too much to say that robbers need to understand hacking techniques in the future.
Yes... hacking is a new business that has been around before bitcoin, and has been becoming increasingly popular and innovative - even though sometimes the hackers do end up getting caught, too.
Regarding your point about bitcoin being "the first application" upon bitcoin (though you used that dumbass term, blockchain), yes, bitcoin is the first application upon bitcoin, but blockchain is largely a nonsensical term, except if we are considering various ways to scam people.. so yes.. I suppose in that way you are correct to suggest that the mere use and conceptualization regarding what is happening around bitcoin to be "blockchain" is a kind of social hack that is likely to be lucrative for generations to come (what is a generation ? maybe 20 years?).. so yeah.. probably blockchain is going to continue to serve as a lucrative social hack for at least a couple more generations, until people realize that they should be building upon bitcoin.. rather than risking being socially hacked and/or rug pulled.. whether deliberately, or through negligence, greed, dumbness or otherwise..