Financial Data versus Health Data
Sometimes, to fully understand an issue, it helps to look at from a different baseline. I've worked in financial services in the past, where I spent quite a bit of time carrying out quite tedious reconciliation work between accounting and real world financial transactions on investment funds. You could do a lot just by using excel macros and visual basic.
Health data is a completely different area in terms of complexity, and the comparison below demonstrates why.
I have another post here if you'd like to read more.