I would argue "not necessarily".

A MBChB degree is a double bachelors degree - Bachelor of Medicine and Bachelor of Surgery.

Nkosazana Zuma is also a qualified medical Doctor (she qualified in the UK).

One view I have read is that an IQ of 132+ is required in order to qualify as a Medical Doctor.

A Medical Degree is no guarantee of sound judgement, or a well honed moral compass, as the examples of Harold Shipman and Joseph Mengele illustrate.