http://www.al-baz.com/shaikhabdalqadir/Shaikh Abd al-adir al-Jilani was Principal of the Hanbali school in Baghdad. He founded the Qadiriyya Tariqa in the 12th century. Sayidka advanced a spolinter group, the Salihiya, which has a Nejdian theology promulgated mostly by the House of Abdul Wahaab.
The Aweysiyya were a spkinter group formed after the murder of Aweys al-Baraawe by the Salihiyya to advance his writings and the Cult of the Saints, and especially the Banadir Awliya. After the British bombings in the Nugaal valley, Sayidka fled south and attempted to raise an army in Italian territory. He was wounded in fighting with the vengeful Aweysiyya, who pursued him to Imo (Immay), where he died of his wound and the flu in December of 1920.
Aweys al-Baraawe was considered one of the best-educated Islamic scholars of his day ( d. 1909), and produced writings that are still influential. It is his Cult of the Saints that the Akhwan and Wahaabbis consider so shirky. But Jilani was buried in his prayer hall at his own request and remains the object of pilgrimage to this day. That should tell you something.
The Qadiriyya are the grandfathers of the missionary efforts that reached Chechya, Indonesia and both the East and West African coasts. It wasn't the Wahaabbiis that brought about the expansion of Islam by peaceful means.