You've got to be kidding me ! They dominate the Transport Business...dominate which means all the freights...everything is dominated by the Pukhtoons ! And calling it a low status business is as ludicrous as saying that the Punjabis servicing the Agricultural Output of Pakistan don't have that 'high a status' !
All Pukhtoons are allowed to study their own mother tongue as a school subject & as an elective in the University up til the Doctorate level.
The rest of your post is something I can't answer because I don't know about the 50 richest families of Pakistan !
But I can tell you this, in terms of Human Development Index (which is a measure of most of what you stated !) - the HDI of much of the Pukhtoon belt is comparable to the HDI in Punjab & Sindh with the Hazara Region enjoying the HDI comparable to the Highest HDI in Pakistan baring Islamabad !
I can also tell you this that Afghanistan's HDI for 2012 stood at 0.374 which is higher than a single district in Pakistan (Tharparkar at 0.314) whilst the second lowest HDI in Pakistan at 0.422 for Musa Khel, Baluchistan which is still quite a bit higher than your country's average ! So at any rate, despite the sh*tty situation that we've been due to having a neighbor like Afghanistan - We're still far...far ahead of you & so are the Pukhtoons of Pakistan !