Influencers bring reach and borrowed trust from an existing audience; UGC brings authenticity and performance efficiency at lower cost per asset. In most GCC accounts, the two do different jobs — influencers for awareness and social proof, UGC-style creative for performance-driven paid social.
A common working model is using micro and mid-tier influencers for credibility and reach, then repurposing or separately producing UGC-style ads for the actual performance funnel, since a single influencer collaboration rarely doubles as strong direct-response creative.