Don't underestimate a major. The major is 8 subjects, along with the 2 core Accounting subjects, makes at least 10 accounting related subjects, so it is fairly full on. Sure you can do an extra accounting sub-major (if you're just doing the single degree), but this could be a waste of time as you really can't learn all that much more without experience. The accounting major will teach you the stuff you need to work in a professional accounting firm. Remember, there is the CPA or CA programs which go in more depth and is basically like a Masters degree, so I wouldn't waste my time with an extra accounting sub-major.
Most people who do accounting at uni go into auditing (like Big4 companies), but obviously you can go into any area of professional accounting.