Once an RWA NFT is created, the RWA NFT is locked, and liquidity providers (who deposited USDC into a liquidity pool) are invited to allocate existing funds into the pool. In return for this they get the fees prorated and their USDC is locked too (not spent) and not transferred to the RWA NFT owner. The benefit to the RWA NFT owner is a stablecoin (minted when the staking is complete).