Why clinicians are meant for only one job description? I think these professionals are think within the box whereas we the non-clinicians think outside the box meaning we can think broad.
Because by studying health management.. they are the perfect & needed people for policy and decision making. They can make the needed changes to improve health status of the countries.. & this definitely has a bigger impact far beyond treating an individual patient..
Students who study 'Health Management' are actually studying the health systems and are being prepared for managerial positions which gives them the authority and responsibility to make a decision at the organisation level. So really they can take any job in the sense of health management position. However the clinician is limited to hi field of study, such as physician he can see patients related in the field so his role is limited to Medicine. But that does not mean that the physician cannot do health management and be a manager like the other health managers. So it a choice really,
The big difference is the focus of the education. The health management students focus on the management of health systems and health organisations which is fundamentally different from medical professions whose focus is on treatment/care of patients and/or research. Medical professions are often highly specialized in one or a few closely related fields. Health management professionals are broader trained.
I think the confusion comes from the fact that both groups are highly educated. If you compare it to other industries, the difference becomes much more clear: the management of big construction companies are often trained managers in the field of general management or finance. Very few CFO's in construction companies are craftsmen like carpenters.