Being a wife and getting perks is a problem...
This is your perception, and flawed at that.
The wife in this case, was eligible for the post of HOD due to her performance and academic brilliance. And she got it.
Yes, your husband being the boss, is helpful. However, VC of PU is
not all-powerful. He has to abide by the rules of the university (and HEC) to appoint an individual on a post.
In PU,
Syndicate (having internal and external members)
approves any appointment on a post. VC needs to convince this body to appoint an individual on a post, or it won't be possible. Prior to approval from Syndicate, there is due process; suitable candidates are shortlisted and interviewed by a panel of experts (internal and external). At this stage, it is up to the candidate to convince the panel, or risk drop. Dr. Shazia was subjected to these norms for her appointment as HOD of Law College, and HEC did not object. Her rivals in Law College challenged her appointment in LHC but LHC ruled in her favor as well. Therefore, Dr. Shazia's appointment as HOD of Law College is on merit and have legitimacy.
However, Dr. Mujahid's opponents multiplied due to his attempts to make members of Jamaat accountable, and refusal to appease everybody. Some of his opponents commenced a vicious campaign on the media to malign him, and he also had a clash with a judge of LHC (a member of
Syndicate) on an unknown issue, and this backfired on him.
NAB is free to investigate all kinds of allegations and charges of corruption in relation to Dr. Mujahid but treating him like a criminal is
ill-advised. He is not a criminal, period.
A country which have little regard for the sanctity of its brilliant academicians, has no future. Holy Prophet (PBUH) held all teachers in high regard.