I totally agree, however there are only 8 hours in a work day, and programmers need to understand that their 8 hours have to be focused on producing code, not o

I totally agree, however there are only 8 hours in a work day, and programmers need to understand that their 8 hours have to be focused on producing code, not on understanding the business, if the choice ever does come up (and it ought to). Pretending like every single employee needs to have a complete view of the entire business is absurd, I hope that's not what you're suggesting.