I have been the most vocal here about not wanting to hire engineers with dual majors in business. The company I worked for (now retired) was big aerospace. We did ENGINEERING. We had other groups that did the financial stuff (bean counting, etc.) and still others that did marketing, totally different career paths.
The marketing group could be an interesting group to work in but they didn’t hire right out of college. You needed to understand what the products were before you could have any credibility in marketing. They typically took in experienced engineers who wanted a career shift, and it is quite a shift.
If you were interested in doing engineering management, then you needed to understand the engineering part very well first. And your role as an engineering manager was a multi-role position; people management, mentoring and cost and schedule estimates. All skills that came after some years of experience, not usually from business school. If you wanted to move into engineering management, then the company offered classes in the skills you needed. In fact, the company required that you take those classes and earn a certificate to even be considered for engineering management. My experience, which I limited after my first hire of a dual graduate, was that they had these business skills and so wanted tasks to utilize them. I had no such tasks in the group, we did ENGINEERING. And they didn’t have the skills I talked about above for engineering management. Frustrating for me and the person I hired. They left the company after a short stay.
That said, there is some value in taking a few classes in the business would that would directly relate to an area such as manufacturing management. I took such a class as an undergrad and found it useful, but I certainly wasn’t going to make it my career. I took it as one of the classes that every engineering major has to take to gain some breath within their college education.
When hiring, I would look for the best prepared engineering applicant. The one with the most classes that pertained to the job I was offering. Most hires did more than the minimum engineering classes needed for their degrees. A dual degree in business takes away opportunities to enhance one’s college engineering experience.