The liquidity pool is one of the core technologies behind the current DeFi technology stack. They make it possible to diversify transactions, loans, income generation, etc. These smart contracts power almost every part of DeFi, and will likely continue to do so.
Developers can have an administrator key or other privileged access in the smart contract code. This can allow them to potentially perform malicious operations, such as controlling funds in a pool.
One thing to note here is that if they are not in the same price range, Curve's formula will no longer be valid. However, the system does not have to consider this.