Fintech was the largest category on this year's Disruptor 50 list, reflecting the accelerated adoption of digital financial services. So-called "challenger banks" are a big part of this growth, as consumers are more inclined to move to online banking in a stay-at-home world. Discussing this and more, Chime co-founder and CEO Chris Britt and Better.com founder and CEO Vishal Garg join CNBC's Kate Rooney at the 2020 Disruptor 50 Summit.