Delegating tokens to a validator entitles you to a proportionate share of the revenue that your chosen validator earns.
As well as the financial rewards, delegators also contribute to the security and prosperity of the Entangle Blockchain. By delegating your $NGL to independent validators, you also help to ensure that the EOB is a decentralised blockchain, with the security benefits inherent in distributed systems.
Delegating can also have a positive impact on the price action of a token, as tokens that have been delegated on chain are not included in the circulating supply when aggregators like Coingecko calculate the Market Cap of a project.