The surveillance-based lead funnel is failing due to tracking restrictions and AI-driven content saturation. As buyers retreat to private "Dark Social" networks, companies must pivot to a "Revenue Engine" model that prioritizes conversion velocity and "engineered trust" over raw lead volume. This architecture requires a unified data foundation to align sales and marketing, recovering lost signals in a decentralized digital landscape. Future growth hinges on ecosystem partnerships and "Generative Engine Optimization" (GEO) to establish algorithmic authority. While AI automates routine tasks, a "Human Premium" becomes the ultimate competitive moat for high-stakes decisions. Organizations must build robust first-party data assets now to survive the transition toward autonomous, agent-led "Agentic Commerce."