He and other chiefs of Mongols like Sugriva, Mainda, Dvivida, including Nīla, Tāra, Tāreya (son of Tara i.e. Angada), Nala as also Rambha were created by God for the sake of you O' Rāma!
एषेव चान्ये च महाकपीन्द्राः सुग्रीवमैन्दद्विविदाः सनीलाः। स्त्वत्कारणाद्राम सुरैर्हि सृष्टाः॥