For the Mughal monuments located in Lahore, the tour itinerary for India can be extended to include these  3/4  monuments. Those associated with the leisure and hospitality industry here can help in organizing group tours and also investing in the supporting infrastructure – tourist lodges, hotels, transport, etc.
I have presented the above examples as simply illustrative of the many opportunities which exist for the overseas Pakistanis to explore and exploit. In my view, you are in a relatively better position to exploit some of these opportunities as compared with the foreigners because you have a better understanding of the cultural milieu in which we operate.