No, economics is a requirement for some engineering. Engineers in the workplace cover a wide range. Hopefully I can get my MBA here soon. And if engineering is too rough for someone, they can drop down to business. (Or stop half way and go to Industrial Engineering :). )
But, again, I was just taking your own rules and making it more accurate.
No offense at all. I studied, lived and worked with them for 4 years lol. We're all weird. Somewhere on a socially awkward scale.