Persons from Human Resources/Legal / Personnel/ administration a neglected lot to get an exposure at upper management?

Persons from Human Resources/Legal/ Personnel/ administration are not getting due exposure in higher eschelon/upper management. The reasons & Factors responsible for it. an observation.

Generally Personnel from Marketting, production or finance sides are getting an opportunities as CEO or alike status.
But HRD or ADMN/Or from Personnel field executives or managers seems neglected lot.
As observed from these field they seems reluctant to compromise with organisational interest, never prepared to please client/ customer by illegitimate way i.e. graft, gift, corruption.
This is a class or category who never oblige any body out of legal framework.
This is a class who has to evaluate or appriase the performance & generally they remain quite miser in liberal assessment of personnel, but always maintain realistic approach which is being reflected in their apprisal report.
This is a class who are insisting & maintaining discipline, ideals, ethics & code of conduct along with honest & organisational loyalty in the the organisation which is generally not prefered by any body right from workers to union or a lot who desires to be obliged.
In case of violation of foregoing provison this is the class who is entrusted to initiate disciplinery actions.
Last but not the least this is a lot wh0 never prefers to do any thing for which their conscience does not permit.
These are the factors never liked by any body in the organisation whether it is governmnet or privateor public sector, in this period when any body wants to gain putting aside all morastic ways & here stated approach by short cut, which an HR/ADMN or Legal luminary will never even dreame because they have known, discern & understood the value of right selection for right job.Thus only they can contemplate one decision to select wrong person on right job becomes how much dearer to the organisation.