No. They now have a good deal of uranium and an enrichment program, which we’ve said nothing about while we’ve hit Iran with heavy sanctions.
Pakistan has had nuclear program since at least the 70s (didn’t test until the 90s, I believe), and it’s more about their conflict with India, who also have nukes. It has far less to do with Middle East regional politics.
Plenty of Pakistan nationals work in Saudi Arabia, I believe. Often in pretty shitty, manual labor or domestic labor jobs.