TikTok's affiliate model has fundamentally shifted brand spending priorities by enabling measurable ROI through shoppable content, forcing YouTube and Meta to develop their own affiliate programs. Global creator economy is projected to reach $480B by 2027, with Asia-Pacific driving 15% annual growth. Each platform suits different needs: TikTok excels at authentic, direct content and immediate sales measurement; Instagram focuses on premium, aesthetic branding; Facebook offers broader reach for engagement-driven products like insurance and investments.