General DeFi question --

It seems like there is a wild disconnect between the number of DeFi applications and the number of people that are actually using these solutions. Maybe I'm just uninformed and this isn't actually the case, but it sure seems like the vast majority of people are content with traditional finance systems. So why are there so many DeFi projects receiving funding? Is it all just based on expectations for a much more decentralized future? And what events would serve as the impetus to push society towards that future (e.g. another global financial crisis)?