A very long time back, before we were born, there was a man called Ayub Khan, who saw that the country Pakistan's existence is always under danger from India. That made military the preferred institution of the country. No military, no Pakistan. On the other hand, the system of personal contacts (sifarish) and bribery was inherited from the Mughals, thrived in British times to some extent and then flourished from 1947 in the civil sector. This is evident from the fact how 65 years on Malik Riaz challenged if even a small business can be set up without bribery and sifarish. Coming back to Ayub Khan- the man overtook the country and did what he thought was best as in building industrial complexes within the country for progression using resources from the Army as he thought that Civil departments of Govt and private companies/business were inept and failure.
That didn't help in the long run. The military leaders later on found Ayub Khan's action an excuse to throw away democracy at will without realizing Ayub's thinking while the civilian leaders and Govt knew that eventually military will handle the chaos which erupts inside Pakistan or on borders. This was proved wrong in 1971.
Slowly and gradually, Military started becoming strong because it had access to the best technology in Pakistan as well as best teaching instructions including budget and the funds. These funds were the gates opened from China after 1965 with military free weapons/funding lines for arming Pakistan Army. At that point, military started investing in R&D.
I always said Pakistan Military is a system and I maintain it till today. The reason its a system is because civil Govt. or Civil system of any sort-banking, agri, technology, power, engineering, logistics, etc may collapse, but Military won't collapse. why ? because banking-Askari, agri-military lands, power-military MES backups, logistics - NLC/FWO, Engineering- Engineers/Signals etc. The point is that military made a backup of its own for everything in parallel. I just named a few departments. Civil Govt knows it will look towards Military for anything and thus needs to be on good terms with the military.
Why military succeeded and civil failed ? Because not only military had resources, man power, got preference for budget etc, but also that military devised the system through training, discipline, military standards etc to ensure that officers are trained and carry out orders without failure to setup anything that is required. Take NUST for example, all military academic colleges have access to civilian researchers. The civilian students pay NUST to research in different disciplines of R&D.
If today bribery and sifarish ends, the civil system of Govt will collapse. Public will be outraged also since majority of things are done under the table through shortcuts. Actually, Pakistan will cease to exist. Even when military personnel were sent in civil departments like WAPDA, PIA etc, the military failed in front of the system of bribery and sifraish and corruption and other money making techniques from line man to management of these departments and they couldnt be rescued. This is why anything can be done through money in Pakistan while law is pushed aside. The non existent law which is applied on those who are poor thus cannot buy the law. Any MPA, MNA, or affluent person can buy the law. Why should military follow the law ? it has a parallel system in place that civil govt cannot match.
So, no one follows the law in Pakistan. everybody looks for shortcuts. No one wants to work hard except the low tier who have to do it out of compulsion and stop when they become senior.
75 years onwards, the threat of India taking over Pakistan is long gone with advent of nuke, missiles, drones etc, but by this time today military has become the strongest entity in Pakistan so that the Civil Govt and departments are even dependent on it.
In any case, the system benefits any one in department - be it a peon or mid career Govt officer or a top level Director. So why should they change the system ? Eat together.