Can anyone who has worked on Bank of America comment on if any of the things they build actually worked?
Last year they had $28 billion in net income. With that kind of money you can hire the best in the world to build literally whatever you want. They could go build a space shuttle if they felt like it - probably without much trouble.
In the unlikely situation that it didn't work, they'd pay someone else to fix it or re-do it. The least likely (albeit not unprecedented) end situation is that 'none of the things actually work'.
"Space Shuttle" was rhetorical, but yeah, they could churn out a space shuttle. They could buy SpaceX and use their engineers to do it. BofA has $2.3 TRILLION in assets.
The point is you can buy expertise. It's not like a bunch of bank tellers coded up a cloud platform. Nor would you have a regional branch manager running an aerospace program. You'd hire people that know how to do those things the same as any other expert at any other company.