That's exactly my point, infrastructure is useless to transform your economy from agriculture/oil economy to manufacturing/industrial economy. Saudis made the same mistake as Pakistan by investing in infrastructure first and economy later.
Iran made full transition from oil economy to manufacturing and industrial economy because they focused more on educating people than upgrading infrastructure. As people became more educated and grew the economy, infrastructure was upgraded along the way. Pakistan needs to follow Iranian model.
Let me give you a practical example of what this difference actually means.
Iran invested big in education and manufacturing industrial economy. They became 10th largest producer of steel in the world ahead of countries like UK and France which allows their highly educated population to build and engineer a lot of heavy machinery and export it to other countries for a lot of money.
Pakistan has not invested in education and manufacturing industrial economy, result of that is firing all Pakistan Steel Mill employees, and a very limited export business.