Business Management vs. Project Management

I personally feel Business Management is far more versatile than Project Management because in business you can have lots of projects running and it needs more skills.I think of Business Administration as a subset of Business Management just like Site Administration as a subset of Project Management. Also, BM skills are more transferable compared to PM skills if you gain through experience & not just through schooling.I come across many MBAs and PMPs who mention these in their headlines to gain attention rather than real value they can add to the buyers. What you think?