I’m a marketing director and I have a limited knowledge of IB. Big consumer brand, but there is lots I don’t know about IB and consulting. The first name you have on your resume will make all the difference - you’ll be known at future companies as the guy from Microsoft, or PwC, or wherever.
Berkeley still has a great reputation in California. People here think of it as an Ivy League school, but not many people out of state see it that way. You’ll be seen as a smart kid with Berkeley on your resume, but like I said, econ is very different from business. If you want to go work at the World Bank or teach, Berkeley looks strong. But people hire business majors for a particular set of skills, which econ majors may have an aptitude for, but don’t actually have.