I don't think you've ever met any of PIA pilots. They have $hit skills. No english communication skills, no nothing (They often have trouble communicating with towers abroad). Can't compare it to foreign pilots. Also, those stats you posted, they're incorrect. There is currently over supply of pilots in USA, Canada etc. Their salaries are much lower. PIA pilots should be paid market rate, no more, no less. I think they are being paid a reasonable amount considering the fact that there's pilots in pakistan willing to take these very jobs very happily at these salaries.
PIA should be privatized or even better, liquidated. That will solve all problems.
No there are no problems in the free market. Except for those who are stupid and lazy...