Oh I do not expect IK to fix anything, not since 2013. Neither will any other single individual or government fix Pakistan. I only root for him because he is anti establishment ( at least for now ).
Pakistan's actual issues are much more basic. How much of the country can even write their name in Urdu or English? The masses live in filthy conditions and have little or no education. Neither is the elite interested in fixing that.
Reason is simple. If every household in Pakistan became literate and healthy, then how will the current elites hold the country?
Reason its so easy for army to control Pakistan is because as an institution, its got the resources and enough intelligent people to run circles around everybody else. Same goes for many of our politicians, zamindaars, judges etc.