> Sure progress comes from scientists , not from idiots building b2b saas apps.

Progress comes from all sorts of places. Scientific progress come from scientists. That doesn't result in things better in my life without a huge number of other people doing things well and efficiently. Both of which includes anything people will pay for, including b2b saas apps. Try having a pandemic lockdown without Amazon-level fulfillment in place. Thankfully we didn't have to.