Whilst I get that there's the everlasting suit and cargo pants war, a business degree in conjunction with personal design work, or a engineering degree with personal business experiments makes one hell of a combo.

When you're founding a startup, your team needs to have certain skills spread between the members. One is sufficient technical savy to put together a product (engineering, graphic design, product design, programming, etc.), and the other is sufficient business acumen to make people buy that product (market analysis, marketing, accounting, salesmanship, negotiation, planning).

There is this belief often held with engineering heavy crowds which is "Build a better mousetrap, and they will come". They won't. Your potential customers won't suddenly feel a tingle in their stomach leading them to the store in order to buy your mousetrap. That tingle needs careful engineering as well, as well as getting the mousetrap into the stores, handling the payment processing, paying the manufacturers, you get the picture.

Similarily, there's the belief in the marketing crowd that "I can sell you anything, I just need a product". It's equally flawed, out of obvious reasons.

So obviously engineers want nothing to do with slimy business people, and businesspeople want to have at least 3 layers of organization between them and the filthy engineers. So if you can step into both pairs of shoes, you can bridge that gap and you're at a distinct advantage.