"MBAs in humanitarian studies" doesn't exist. You probably mean Masters in humanitarian studies?
Just for info: An MBA is a general management qualification, preparing you for a job in business/management. Although some uni's offer specialisation pathways, it is generally acknowledged that it's a very general degree which prepares people who have already worked for a couple of years in a non-business area (e.g. engineering) for a job in the higher ranks of the organisation. It's like a crash course in business studies.