I work in financial software and many of the tools used by large companies are surprisingly archaic. I think there is a lot of opportunity in this space, but change is slow. What I think is going to happen is that non tech startups which heavily use new technology will displace the old.

For instance companies like wealthfront will eventually have an advantage over most financial advisors because the company is built on technology from the ground up. This might take awhile, but I think it is inevitable.